

Lasts 3X Longer Than High Speed Drill Bits. 135 Point Angle With 4 Cutting Edges Which Eliminate Walking And Provide Fast Penetration. Black Oxide Tempering Treatment Reduces Frictional Resistance And Improves Chip Flow.
Lasts 3X Longer Than High Speed Drill Bits. 135 Point Angle With 4 Cutting Edges Which Eliminate Walking And Provide Fast Penetration. Black Oxide Tempering Treatment Reduces Frictional Resistance And Improves Chip Flow.