Parallelism:30_in/per inch.
Squareness: 50_in/per inch.
Made of alloy steel
Hardness HRC56-58
3M 06742, Overspray Protective Sheeting, 20 ft x 250 ft, 7000120043
Insize 7230, SCRIBER, 6928640320064
Insize 7231, SCRIBER, 6928640320071
3M 65490, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH580TRI-10I, 5 inch UH, 80, 7100202887, 10 per pack
3M 06742, Overspray Protective Sheeting, 20 ft x 250 ft, 7000120043
Insize 7230, SCRIBER, 6928640320064
Insize 7231, SCRIBER, 6928640320071
3M 65490, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH580TRI-10I, 5 inch UH, 80, 7100202887, 10 per pack
Parallelism:30_in/per inch.
Squareness: 50_in/per inch.
Made of alloy steel
Hardness HRC56-58
