Parallelism 80uin/per inch
Squareness 100uin/per inch
Made of alloy steel
Hardness HRC56-58
Insize 6566-3E, DIGITAL EDGE FINDER, Shank (A) 3/4" DIA, with Beeper, 6928640374876
Insize 4121-41, AMERICAN STANDARD THREAD RING GAGE, GO, 4-40UNC, 6928640359088
3M 65491, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5220TRI-10I, 5 inch UH, 220, 7100202878, 10 per pack
Insize 6566-3E, DIGITAL EDGE FINDER, Shank (A) 3/4" DIA, with Beeper, 6928640374876
Insize 4121-41, AMERICAN STANDARD THREAD RING GAGE, GO, 4-40UNC, 6928640359088
3M 65491, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5220TRI-10I, 5 inch UH, 220, 7100202878, 10 per pack
Parallelism 80uin/per inch
Squareness 100uin/per inch
Made of alloy steel
Hardness HRC56-58
