A&M Instruments Industrial Diamond 0.312" Flat End Cylinder (Mandrel) - 4378-0312Sold individually for $28. 25 each. A&M Instruments Product Code: Fine 4378 0312F; Coarse 4378 0312C Grit: 220 Fine; 120 Coarse Head Diameter: 0. 312" Head Length: 0. 312" Clearance: N A 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

Coarse HP6909-056

Coarse 6868-019

Super Coarse 806 314 198 544 019

Super Coarse 5878K-021

Coarse 806 314 141 534 013

Old ISO #: Medium 6052-018

Coarse 4378-0045C

Coarse 806 314 108 534 010

Coarse 6847-019

Coarse 6801LS-023

Old ISO #: Medium HP805-016

A&M Instruments Product Code: Fine 4378-0020F