A&M Instruments Industrial Diamond 0.25" Ball - 4018-0250Sold individually for $15. 95 each. A&M Instruments Product Code: 4018 0250 Grit: 120 Coarse Head Diameter: 0. 25" Head Length: 0. 25" 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

Old ISO #: Medium 855-012

New ISO #: Fine 806 314 304 514 015

A&M Instruments Product Code: A4LS

Coarse 806 314 297 534 018

New ISO #: Fine 806 314 198 514 011

Medium 862-016

New ISO #: Medium 806 314 288 524 012

New ISO #: Fine 806 314 220 514 013

A&M Instruments Product Code: H23

Rotozip® and others

Coarse 806 314 199 534 019

Coarse 806 314 273 534 022