Tool Bits


Our premium quality M2, M42, PM T15 and PM M48 high-speed tool bits are manufactured using the finest domestic and European high-speed steel available. Our bits are precision ground on four sides with the utmost attention to detail in terms of precision sizing and squareness tolerance. We have a wide range of tool bits that we offer. From radius-cutting to single-point tool bits, our extensive inventory serves for rapid turnaround times. We guarantee you will be happy with their performance.

tool bits

Diameter Tolerance

TOOL BIT SIZEM-2 Rc 62-64M-42 Rc 66-68PM T-15 Rc 65-67PM M-48 Rc 68-70
1/8 SQ X 2-1/2in stockin stockin stockin stock
3/16 SQ X 2-1/2in stockin stockin stockin stock
1/4 SQ X 2-1/2in stockin stockin stockin stock
5/16 SQ X 2-1/2in stockin stockin stockin stock
3/8 SQ X 3in stockin stockin stockin stock
1/2 SQ X 4in stockin stockin stockin stock
5/8 SQ X 4-12in stockin stockin stockin stock
3/4 SQ X 5in stockin stockin stockin stock
1 SQ X 7in stockin stockin stockper request

Flat Calculator


Rounds Calculator


M48: ADD 3.75% | PM T15: ADD 2.5%

NOBODY STOCKS MORE HIGH SPEED STEEL THAN GRIGGS