A&M Instruments Industrial Diamond 0.031" Ball - 4018-0031Sold individually for $15. 95 each. A&M Instruments Product Code: 4018 0031 Grit: 120 Coarse Head Diameter: 0. 031" Head Length: 0. 031" Overall Bur Length: 2. 25" Shank Diameter: 1 8" 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 tools for endless industrial applications including glass

Coarse 806 314 039 534 034

A&M Instruments Product Code: 4015-1000

Old ISO #: Extra Fine 1862-016

A&M Instruments Product Code: Fine 4374-0140F

Coarse 6802-010

Coarse 806 314 001 534 027

New ISO #: Fine 806 104 257 514 032

Old ISO #: Medium 815-027

Coarse 4374-0078C

Medium 848-016

Old ISO #: Medium 801-009

New ISO #: Medium 806 314 298 524 021