Universal Bevel Protractor is. When measuring the angle, the base is placed under the side of the angle. com FREE DELIVERY possible on. 99. No. Kell-Strom Tool Universal Bubble Propeller Protractor 36D 2844 KS 2113 75245. Bubble level assures measurement is made on horizontal plane. 30 CAD. Find here Bevel Protractor, Universal Bevel Protractor manufacturers & OEM manufacturers in India. Digital Level Protractor Inclinometer Magnetic Level Angle Meter Angle Finder Level Box Angle Measuring Tool for Carpentry,Building, Automobile, Masonry etc. Mitutoyo America Corporation announces an expanded trade-in trade-up program for Mitutoyo Coordinate Measuring Machines, Vision Measuring Systems, and Form Measuring Systems. Hover to zoom. A Mitutoyo precision protractor for making accurate angle measurements. 85 shipping. , LtdDigital Angle Finder Protractor 0-360 Degree T-Bevel Gauge & Protractor with Horizontal Vertical Bubble & Full LCD Display for Woodworking, Metalworking, Construction. MAIN APPLICATION: The universal bevel protractor is used to measure the precise angle of the inner and outer parts of the scribe or angle measuring. General Tools & Instruments. Accuracy up to 5 Min, 5 Min Dial Graduation. 12. เข้าสู่ระบบ CDM ติดต่อเราProtractor Universal Bubble - Aviation Parts Lookup. If you have an older tool that is no longer published, you are likely to find the manual in. Measure angles and slopes: The most precise protractor and bubble Level/Spirit level in your pocket. 4. Brown & Sharpe: Brown & Sharpe is another respected brand that produces reliable measuring tools. Sold as 1 Jackson Safety #7 Curv-O-Mark Centering Head Pipe Marker (Jumbo) per order; This tool is a must. 61 MB. The unit features a 360° adjustable protractor dial bubble (DSL) that. Face Standard Angular Measuring DevicesCLINOMETER UNIVERSAL BUBBLE PROTRACTOR: 4: 3MIT5-72322-1: SICKLE PROTRACTOR: 1: 3MIT65-72710-1: PROTRACTOR: RQST* We do not currently have a manufacturing solution for this item but will do our best to source it. i. Buy Protractor Vibrex NSN and aerospace parts such as 913-13053 at ASAP Aerospace. To take full advantage of Universal bevel protractor, read this manual thoroughly before using it. measuring the angular setting of each wing at the rear spar with a bubble protractor. A vernier bevel protractor is attached with acute angle attachment. It is built sturdy for repeated use as well. General Tools ANGLE-IZER T-Bevel Gauge & Protractor with Bubble #928 - Digital Angle Finder with Full LCD Display & 8" Stainless Steel Blade Level, Black. This instrument is capable of measuring angles with a least count of 5′ or 5 minutes. Free shipping. Craftsman Universal Combination Protractor / Inclinometer, Magnetic Back & Base. 【解剖学】牵引肌。Buy Nail s Multiuse Angle Ruler with Horizontal Vertical Bubble Levels Universal 4 in 1 Digital Protractor Woodworking Angle Finder 360 Degree Protractor Tools Level Ruler T T Tool: Protractors - Amazon. Opens in a new window or tab. Test Units. Four-in-one multi-function digital protractor: A: Measuring angle 0-360°; B: Engraved line length: 190 mm/7 inches; C: Horizontal and vertical measurement; D: Plane universal measurement; 2. x Electric Propeller HorizonHobby Categories. Put your protractor on top of the groove. Send Instant RFQ. comThis item eOUTIL Digital Angle Finder Magnetic & Level Bubble Vial 4 X 90°Angle Gauge Inclinometer, Mini Level Bevel Gauge Protractor for Woodworking, Building, Table Saw, Vertical Wall eOUTIL Magnetic Digital Angle Finder Protractor Inclinometer - Cube Digital Level Angle Gauge with Magnetic Base and Backlight -. Leading Protractor Universal Bubble NSN components KS2113 sourcing at ASAP Aerospace. The test fixture has a protractor with 1-degree graduated markings mounted to the top and a bubble level to ensure proper orientation in the scanner. Remarks 187-103 12” Blade. (27) 100% agree - Would recommend. Aircraft & Helicopter Protractors. 5 mins. Read honest and unbiased product reviews from our users. So once again, place the center of the protractor at the center, at the vertex, of our angle. com. 320 Degree Universal Bevel Protractor. Starrett Metalworking Protractors. A goniometer is an instrument that either measures an angle or allows an object to be rotated to a precise angular position. Full 360° range, 4 x 90°. Improve it. We have for sale a universal bubble propeller protractor that a believe to be a Warren Knight wk. spars while the airplane is in flying position. BUBBLE LEVEL: Use the perfectly positioned bubble level on the end of the 928 body to ensure your project and workspace are level before tracing any angles and making any cuts. Digital Angle Finder Protractor 0-360 Degree T-Bevel Gauge & Protractor with Horizontal Vertical Bubble & Full LCD Display for Woodworking, Metalworking, Construction 4. The seller has been active on the platform for more than three years. The term "universal" connotes the vernier bevel protractor’s suitability for countless work configurations and angle relationships. Rotate the protractor by holding down the shift-key + left-mouse button, or use two fingers on your touch device. Universal Multi Angle Tool, 12-Sided Aluminum Alloy Full Metal Angle Measurement & Opening Locator, Tile Holes Measure. us. PROTRACTOR, MECHANICS,. 85% agree - Would recommend. Arthrodial Protractor. Stainless Steel Protractor, Angle Gauges with 14cm Ruler, Arm Measuring Ruler, 0-180° Degree Goniometer, Adjustable Arm Protractor, Detachable Rotary Protractor for. Universal Pitot Static Adapter; Other. These protractors are compact, and offer a high degree of accuracy and precision. Digital Level 15. HIGH HARDNESS: The universal bevel protractor angle measuring ruler is exquisite and applicable, it is also strong and durable with high hardness. Goniometer made by Develey le Jeune in Lausanne, late 18th–early 19th century. -. Ready to Ship $10. Contact me with any questions you may have before buying. 1pc 32mm Universal Level Spirit Level Bubble Bullseye Level Bubble Spirit Level Round Circular Measuring Meter Measuring Tools. comPart Number Description Sources Available Tool Request Qty; 0061CU: PROTRACTOR: 4: 0061R46742: PROTRACTOR: 1: 00IU274A1900000: PROTRACTOR: RQST* We do not currently have a manufacUniversal bevel protractor with a blade length of 150 mm and can be attached to height gauges. The protractor is silver in color and has dimensions of 11. The paint surface of the digital display angle ruler is oxidized, which is more wear-resistant and smooth, and is specially designed for quick and easy operation. Prop Protractor Bracket Material: 1/8-inch Plastic (Lexan or Acrylic) 25 15 515 File notch 25 30 90 30 20. Kelebihan atau keuntungan menggunakan busur derajat bevel (bevel protractor) adalah: Dapat mengukur sudut hingga 5 arcminutes dan dapat mengukur sudut hingga 360 derajat. 5-degree increments Our database of 85M lines of inventory includes parts like KS2113 PROTRACTOR, SPECIAL from multiple manufacturers Digital Angle Finder Protractor, 2-in-1 Digital Miter Saw Protractor, 7 Inch/200mm ABS Angle Ruler, High Accuracy Miter Angle Measuring Tool for Woodworking, Metalworking, Carpenter, Construction Neoteck Aluminum Digital Angle Finder Protractor 225° 16 inch Backlit LCD Digital with Horizontal and Vertical Bubble - Black Universal Level The Curv-O-Mark Universal Level is a multi-purpose tool. 4 out of 5 stars 215. Smile more. The protractor is usually had a semi-circle size divided into one hundred and eighty parts. Categories: This item XMLEI Convenient and lighterCircular Bubble Level Spirit l Measuring Instruments Tool Universal Protractor Tool （60X12mm） Magnetic Round Bubble Level Tool Bullseye Inclinometer Machinist Pocket Precision Spirit String Circular - Trailer Rv Leveling System Blocks Table Post Indicators Camper Leveler Magnet 2. 88 USD. 2 out of 5 stars 187. The durable construction ensures long-lasting performance, and the precise 2. Blade length: 6” , 12”. 6 out of 5 stars 361. To use the Inclinometer app, simply hold your device against the surface you want to measure. 62 Days. com4. 01°) Battery. Mitutoyo, Product: Universal Protractor. Chat now. 445 cm clear plastic device with 1° increments and 360° scale with a bubble level at the end to ensure both vertical and horizontal alignment (Figure 1A). eoocvt 0-320° Universal Stainless Steel Vernier Bevel Protractor,Angle Finder for Woodworking, Carpenter, Construction. The automatic shut-off feature preserves battery life on our protractor tool. US $400. 1 offer from $22. $36. Harga GONIOMETER UNIVERSAL BEVEL PROTRACTOR 0 - 320° / ALAT PENGUKUR SUDUT. Their bevel protractors, like the Mitutoyo 187-908 Digital Protractor and the Mitutoyo 187-555 Universal Bevel Protractor, are known for their precision, reliability, and advanced features. a central point of concentrated activity and influence. 📏 Ruler App. Universal Bevel Protractors Graduation Order No. The frame of the protractor is made of aluminum and has three (3) sides which are 90º to each other. Sound Level Meter; 2. A bubble level is mounted along the straight edge of a semi-circular protractor. Digital Angle Finder Protractor 0-360 Degree T-Bevel Gauge & Protractor with Horizontal Vertical Bubble & Full LCD Display for Woodworking, Metalworking, Construction. 99. Return this item for free. (1) Kell-Strom KS 2113 Universal Bubble Protractor, (3) Hannay Reels HGR50-50-10-PCC Cable Retractors & (1) Proto Torque Wrench. 4 out of 5 stars 212 $44. Get an instant quote for Protractor Universal Bubble NSN part with an. 4. KING PIECES Pipe Center Finder, Measure Pipe Diameter, Pipefitter Tools With Adjustable Dial Bubble Protractor for Setting Level, Measure Pipe Diameter Over 1/2" and Upand up With 4" Y-Type Base. 02 Universal Bevel Protractor Hi Carbon. As we had mentioned earlier, some digital angle finders have a magnet attached to them. The body is designed its back is flat and no projections beyond its back. 【Note:】When determining the angle, the bubble. comDigital Angle Finder Protractor 0-360 Degree T-Bevel Gauge & Protractor with Horizontal Vertical Bubble & Full LCD Display for Woodworking, Metalworking, Construction. Location: Zavalla, United States. Click to expand. 11. To measure angles from 0° to 90°, add an acute-angle attachment. Neoteck Aluminum Digital Angle Finder Protractor 225° 16 inch Backlit LCD Digital with Horizontal and Vertical Bubble - Black. 13. You can also use the Online Protractor to compare two angles. Digimatic Universal Protractor. FLADIZ - Universal Protractor n Color Circular Bubble Level Round Level Bubble Accessories for Measuring Instrument 60x12MM - Amazon. Bubble Spirit Level, High Precision Horizontal Leveler, Circular Bubble Level Tool Circle Round 60mm Measuring Layout Tools Universal Protractor Tool - Amazon. So in reality, it is a matter of selecting which one you want to do whatever job you have in mind. 4. V. 50+ bought in past month. Description: Product Highlights Starrett 359 Precision Universal Bevel Vernier Protractors with fi ne adjustment are designed for precision measuring and for laying out angles. It looks as if its the original factory bubble, as it has the open end closed with what looks like a "puddy" and painted over with the original coat of paint. 15. 4. Another universal protractor, this time using the Stevenson alignment method with null points at 60. US $1. Angle Protractor Universal Bevel 360 Degree Electronic Digital Protractor inclinometer Goniometer Level Angle Measurement. 00. Kell-Strom AERO ANGLE II Digital Protractor $ 0 – $ 171. This item: Circular Bubble Level, Spirit level Round Bubble Level Measuring Instruments Tool Universal Protractor Tool (66x10mm) $63. The protractor head is a 180° dial with a bubble. Price: $2,010. (KS2113) Universal Bubble Propeller Protractor - eBay. 2 out of 5 stars 437. $308. 03°) Repeatability: 1’ Resolution: 1’ (0. BEVEL PROTECTOR: The angles can be measured by precision instrument that is known as universal bevel protractor. Out of Stock. $7. The unit features a 360° adjustable protractor dial bubble (DSL) that ensures accurate leveling and permits the following additional uses: ° Setting a predetermined pitch of a string of pipe ° Setting the angle of laterals to a. A bevel protractor comes with a magnifying glass, which helps when reading angles more precisely. Please use the request form to start a calibration services quote. $69. 1. This instrument is capable of measuring angles with a least count of 5′ or 5 minutes. universal protractor 万能角度尺; universal bevel protractor 万能量角器; chromium plated universal bevel protractor 镀铬万能角规; chrome plated universal bevel protractor 镀铬万能角度尺; universal chrome plated vernier angle protractor 镀铬游标万能角度尺; double protractor 双斜量角器; protractor scale 分角器标度，分角器标度RISEPRO 10-Inch Digital Torpedo Level and Protractor IP54 Protected Electronic Bubble Inclinometer, Angle Finder, Gauge w/Large VA Display & V-Groove Base DL135N. Alitools rating: 91% / Aliexpress rating: 92% More details. Starrett C493B Protractor and Depth Gauge, 0-180 Degrees w/ 6" Blade Length. 2. Remove the protractor from the blade. Miscellaneous. 71 Universal bevel protractor [source: “Engineering Metrology & Measurements”, N. 4. Add to Cart. Advantages of miter protractor: Miter protractor can measure angle for different cut setting. 360° protractor, clinometer with bubble level, level tool; Surface level, plummet tool; Automatic bubble level display / Spirit levels for 90°/180°/270°/360° Automatic transition from protractor to plummet tool; Acoustic signal indicating the angular difference between actual and target angle; High Precision ScaleUniversal Digital Protractor Model No. So let's try to measure this one right over here. It is powered with a rechargeable battery. Rectangular or semicircular head protractors. It can also be used for a variety of other applications such as wing surfaces, flaps, tail sections or anything needing to be measured in degrees. Protractor Bubble Level latest version: A free program for Android, by JRSoftWorX. Measuring the angular setting of each wing at the rear spar with a bubble protractor b. Are you looking for the Bubble Protractor of 2023? Romance University supports to analyzes, compares, reviews from consumer report, our expert community. As the actual blade angle is a relationship to the plane This item Yaami Slope Meter, Baseline Bubble Inclinometer Magnetic Protractor Roof Pitch Gauge Goniometer Ramp Scale Clinometer With Liquid Level Indicator Degree Finder for Woodworking Boxwizard Inclinometer, Roof Pitch Gauge Engineering Inclinometer Universal Slope Measuring Ruler Multifunction Angle Meter Digital Level Angle Finder Adjustable Bubble Protractor: this Jackson Safety Contour Dial-Set Level is an adjustable bubble protractor ; Compatibility: Jackson Safety Curv-O-Mark tools including #4, #6, #7, #8, #20, and #33 ; Durable: The DSL's bubble is cast in the aluminum dial for long life ; Increments: Reads in 2. Alongside a large and clear display, the v-groove base design enables you to. 99 $ 19. 2. 79. 008 degree ;. This tool has two digital displays that invert when turned upside down; one shows the base angle and the other shows the moveable arm angle. Bubble Level, Spirit Level Pro. a. 3916001-505: INCLINOMETER: RQST* We do not currently have a manufacturing solution for this item but will do our best to source it. Digital Universal Protractor. Universal Precision Protractor for Square Blades. com purchase@asap-aerospace. They are often used in metalworking, machining, and light or heavy manufacturing environments. Download. Cabin vibration can sometimes be improved by reindexing the propeller to the crankshaft. Mitutoyo 187-904-10, Universal Bevel Protractor, 6" Blade, 5 Minute Vernier Resolution. WARNING – Keep batteries out of reach of children. This is a three-in-one device and includes a protractor, angle finder, and leveler. Unit of Measure: EA. e. Standard calibration to manufacturers specifications. 4 mitutoyo MTI dial protractor dial screws 190007 new machine shop insoection . GemRed 82305 Digital Angle Finder Protractor Stainless Steel. Solutions. Interestingly, some advanced models of inclinometer can measure the surface inclination on 2 axis or 3 axis. pmmj multifunction slope measuring instrument universal slope goniometer angle level angle meter angle foot slope meter high precision angle slope measuring instrument magnetic level bubble inclination meter protractor angle finder slope scale meter at the lowest price at Temu. As the Base Plate (Stock) acts as one of the working edges, and the other working edge will be the blade which is held on the circular plate. The app uses your device’s built-in sensors to detect the angle of the surface. $21. Easy to read viewing bubble ( the bubbles can be gathered within 2 seconds after impact ). 22 APK download for Android. Landing Compass; 2. Huepar Digital Angle Gauge Protractor, Electronic Bubble Angle Finder Dual Axis Level Box 0. Rp482. Angle Protractor Universal Bevel 360 Degree Electronic Digital Protractor inclinometer Goniometer Level Angle Measurement. TIP: the reason you are not just reading the main degree scale is. $19. 49. 7inch Angle Gauge Spirit Level Ruler with INCH/MM & Level Bubble Vials - 360 Degree Measuring Super Gauge Tool for Carpenter, Construction, Woodworking. Plane universal measurement; 2. Hence, you can use it for multiple applications like carpentry jobs, HVAC, plumbing, and electrical. 半圆规，分度规，量角器。 2. Inc. Protractor heads are an attachment or an optional part of a combination square set. 2 days ago · Ruler, Protractor & Bubble Level (Nuts Ruler) is a free measuring tool that allows you to easily measure length, angles, and perform horizontal/vertical calibration. or Best Offer. Universal bevel protractor. mrdavesneedfulthings (79) 100%. Log In Try for freeApril 27, 2023. 1 : Protractor 6. Universal Bevel Protractor (Vernier Bevel Protractor) is the simplest angular measuring device which is having a Vernier Scale(Similar principle as the. NEW SEASON DEALS: Extra 10% discount on orders of € 150+ with Code: FALL23. 3. Add $ 13 92. Parts. $220. Therefore, the least Count of Bevel Protractor is 5 minutes. Current Stock: SPI Universal Bevel Protractor with Dial & Micrometer Readings - 30-390-9. In stock. $69. + Mudtools MudSponge Cleanup and Shaping Tools for Pottery and Clay Artists -Set of All 3 Styles. $ 2596. Fowler 52-440-612-0, Universal Bevel Protractor with 6" and 12" Blade. The last cal. com. . General Tools ANGLE-IZER T-Bevel Gauge & Protractor with Bubble #928 - Digital Angle Finder with Full LCD Display & 8" Stainless Steel Blade Level, Black. Check Pricing. Placing a straightedge and bubble protractor across the spars while the airplane is in flying position c. Bubble in the middle is in a balanced state. 52-448-612 Fowler's Universal Protractor is a high precision anglegage with accurate worm gears. Integrations; Resources. 74x15mm Metal Horizontal Bubble Universal high Precision Bubble Level Round Bubble Level Ruler Calibration Tape Installation 10 ′ / 2mm. Mitutoyo America Corporation announces an expanded trade-in trade-up program for Mitutoyo Coordinate Measuring Machines, Vision Measuring Systems, and Form Measuring Systems. The Propeller Protractor a full-circle, plastic protractor used to measure the radial angles on a propeller spinner from a predetermined reference point. Circular Bubble Level Level Round Bubble Level Measuring Instruments Universal Protractor Tool 60 * 12mm - Amazon. Please use the request form to start a calibration services quote. Vintage Kell-Strom 36D-2844 Type USN Universal Propeller Protractor tool in good condition with the original case, the tool measures 7 1/4'' wide. 90 $ 36 . 8 and 113. Press the random button and this is the initial display state for the angles. We are the premier supplier of Protractor Universal Bubble parts in the USA. Except for. Pre-Owned. Protractor + Bubble Level ° 1. FREE delivery Thu, May 4 . Get contact details & address of companies manufacturing and supplying Bevel Protractor, Universal Bevel Protractor, Vernier Bevel Protractor across India. Two 180º opposing scales in 5º increments. a shaft conveying rotary power to mechanical systems. Pressure Testers. 3 4. Crystal-like transparent, Light. 00. OPERATION AND CARE MANUAL Do not subject the protractor to blows or knobs. Digital Angle Finder Protractor, 2 in 1 Angle Finder Ruler with 7 inch/200mm Stainless Steel Angle Measuring Tool Large LCD Display Protractor for Woodworking, Construction. 5 /5 · 20 reviews · "fast Service" Contact Supplier. Check our ranking and reviews below. 2 out of 5 stars 200 2 offers from $16. 14-day delivery on US $8. 7'' with LCD Display, 360° Angle Magnetic Digital Torpedo Level, Vertical & Horizontal Spirit Bubble Protractor for Construction Carpenter Craftsman Home Professional. In stock. Vernier Bevel protractor • These are marked 0-60 minutes of arc, so that each division equals 1/12 of 60, that is 5 minutes of arc. dummy. BUBBLE PROTRACTOR . 7. POWERTEC 80002 Universal Angle Template Tool - Easy to Use Plastic Multi Angle Ruler - Ultimate Gift for Woodworking Shop. 300+ bought in past month. The angle between the stock and blade can be set and read to 5‰Ûª resolution with the aid of the built-in magnifier. This website offers free phono cartridge alignment protractors and other tools for turntable setup. Buy It Now. Brand: Froiny. Most impressive is the metal jig for measuring the pivot-to. A precision protractor that can be read to one tenth of a degree. Marketplace A global marketplace to find, buy and sell aircraft parts. 300+ bought in past month. 89. 49. driveshaft. Digital Angle Finder Protractor with Bubble Level. e. 99. com. Mitutoyo America Corporation announces an expanded trade-in trade-up program for Mitutoyo Coordinate Measuring Machines, Vision Measuring Systems, and Form Measuring Systems. Home / Shop Universal Precision Protractor for Square Blades. A protractor requires two surfaces to measure the edge in degree angle. Feickert Analogue Universal Alignment Protractor. It can also be used for a variety of other applications such as wing surfaces, flaps, tail sections or anything needing to be measured in degrees. 4. CLINOMETER UNIVERSAL BUBBLE PROTRACTOR: 4: 3916001-501: INCLINOMETER: RQST* We do not currently have a manufacturing solution for this item but will do our best to source it. 2. Bubble level assures measurement is made on horizontal plane. We suggest you read this instruction manual thoroughly before using the instrument. USE OF BUBBLE-TYPE PROTRACTOR. The Klein tools angle gauge features a measurement range of 0-90 degrees and 0-180 degrees. RISEPRO 10-Inch Digital Torpedo Level and Protractor IP54 Protected Electronic Bubble Inclinometer, Angle Finder, Gauge w/Large VA Display & V-Groove Base DL135N. Well-made stainless steel rulers and laser etched measurements offer clear reading. Skip to main content. Profesional Kell-Strom KS2113 Universal Bubble Protractor calibration services, repair, sales and rental. 4. Dial: 1° Vernier: 5 min. The universal propeller protractor can be used to measure A. Raghavendra. Market price: $181. 75 cm by 4. . Let the ruler drop into the groove, use the locking nut to ensure that it doesn’t move. Supplier: Transcat, Inc. Video Library Careers Blog. US $0. $213. Web Price. Smarter Shopping, Better Living! Aliexpress. Angle Gauge Spirit Level Ruler with INCH/MM & Level Bubble Vials - Measuring Super Gauge Tool - Decoration, Construction, Woodworking, Machinery (94) $16. A charging cable is supplied. . 28 3,343 reviews 500,000+ Downloads Free Angle Meter with Clinometer, Protractor, Spirit level, Camera to measure anglesProtractor - History and Types of Protractors. 23 / ea. Rainyb Digital Angle Finder Tool 7inch 0-360 degree LED Digital Protractor with Horizontal Vertical Bubble Levels and Ruler Meter Accurate Tools for Carpenters,Woodworkers,Fabricators. 99. 25. 610N 6" scale. 01 Degree Resolution. Pre-Owned. Ruler App + Measuring Tape PRO. 22. FREE delivery Tue, Jul 25 on $25 of items shipped by Amazon. Using a dihedral board and bubble level along the front spar of each wing 34. Aero prop hub check - Jul 2 2011. The Empire Level 27912 Stainless Steel Protractor is a handy and versatile tool used to measure and transfer angles. (27) 100% agree - Would recommend. Universal Bevel Dial Protractor 6" 12" Blade 0-360 Degree GRAD Stainless Steel - Amazon. The user interface makes reading and searching easy. Quantity. Buyer must in 3 days of receiving the item. Protractor Bubble Level for Android, free and safe download. Maximum purchase amount of 0 is allowed. Blade length: 6”. AS9120B, ISO 9001:2015, and FAA 0056B Accredited. RZ Angle Protractor Universal Bevel 360 Degree Digtal Mini kingzhop. 2. $87. $169. Multi angle measuring ruler,universal multi-angle measuring ruler 12 side hole positioning aluminum alloy multi angle.