A&M Instruments Industrial Diamond 0.187" Counter Sink - 4664-0187Sold individually for $19. 45 each. A&M Instruments Product Code: 4664 0187 Grit: 120 Coarse Head Diameter: 0. 187" Head Length: 0. 10" Overall Bur Length: 1. 5" Shank Diameter: 1 4" The angle of A & M Instruments counter sink is 82 degrees. For almost 40 years customers around the world have depended on A & M Instruments for high precision Diamond Cutting Tools, CNC Machining, and Swiss Screw Machining. A & M Instruments manufactures diamond rotary

A&M Instruments Product Code: Coarse 4388-0100C

A&M Instruments Product Code: HPC36

A&M Instruments Product Code: 4188-0125

Old ISO #: Medium 909-060

Coarse 6837-015

A&M Instruments Product Code: Fine 4374-0250F

A&M Instruments Product Code: F20

A&M Instruments Product Code: H3

Old ISO #: Medium 877K-014

New ISO #: Medium 806 314 299 524 022

Super Coarse 806 314 199 544 020

A&M Instruments Product Code: FGCAR1156