Accuracy: ?2″.
To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
Can be combined to any angle with interval 6 seconds after combination (6″, 12″, 18″, … , 360?).

3M 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
Insize 6143, DEPTH STOP FOR CALIPERS, 6928640371301
3M 47088, Cubitron II Stikit Film Disc 775L, 240+, 6 in x NH, Linered w/Tab, Die 600Z, 7100145372, 250 per case
3M 26018, PPS Series 2.0 Adapter, Type S11, 3/8 Male, 18 Thread NPS, 7100135942
3M 26116, PPS Series 2.0 Adapter, Type S25, 1/4 Female, 19 Thread BSP, 7100135957
3M 17534 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Medium, 2-1/2 in x 60 in, 7010366042
3M 26015, PPS Series 2.0 Adapter, Type S8, 12 mm Male, 1.0 mm Thread, 7100135931
3M 27359, Cloth Belt 970DZ, 24 YN-weight, 25 in x 75 in, Film-lok, Single-flex, 7010361224, 2 per case
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 97421, Aluminum Foil Tape 3380, Silver, 72 mm x 45 m, 3.25 mil, 7010375681
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 55657, Stikit Film Disc w/Tab 375L, P240, 6 in x NH, Die 600Z, 7100106615, 250 per case
3M 03123, Pro Grade Precision Edge Detailing Dual Angle Sanding Sponge, 24302TRIP-XFDA, 2-7/8 in x 4.5 in x 1 in, X-Fine, 7100170066 