A&M Instruments Stoneworking Demi Bullnose 3/4" Radius Plated Diamond Router Bit for Marble - DBN 0.75Sold individually for $100. 00 each. A&M Instruments Product Code: DBN 0. 75 Material: Marble Grit: 35 40 Coarse; 120 140 Fine Head Diameter: For 3 4" Radius Shank Diameter: 1 2" Used for edging 3 8" to 1 2" thick marble or granite (see product description). Diamond metal bond impregnated type for granite, nickel plated type for marble. For almost 40 years customers around the world have depended on A & M Instruments for high precision Diamond Cutting

A&M Instruments Product Code: HPC6

A&M Instruments Product Code: 4198-0125

Coarse 6879KL-023

A&M Instruments Product Code: 55014-0375

95 each/box of 25

Old ISO #: Medium 837-016

New ISO #: Extra Fine 806 314 277 504 016

Fine 8852-015

Medium 806 314 001 524 012

A&M Instruments Product Code: HP812-083

45 each/box of six

Coarse 806 316 001 524 026