A&M Instruments Industrial Diamond 0.14" Mandrel - 4374-0140Sold individually for $16. 25 each. A&M Instruments Product Code: Fine 4374 0140F; Coarse 4374 0140C Grit: 220 Fine; 120 Coarse Head Diameter: 0. 14" Head Length: 0. 25" Clearance: 1. 00" Overall Bur Length: 2. 25" Shank Diameter: 1 4" 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

A&M Instruments Product Code: HPC900

Medium 806 314 273 524 010

Coarse 4374-0156C

Manufactured for use in power drills and routers

New ISO #: Medium 806 314 196 524 010

Clearance: 1

Coarse 4378-0090C

New ISO #: Medium 806 314 002 524 009

Medium 840-014

Old ISO #: Fine 8850-011

120/140 Fine

A&M Instruments Product Code: A1