

Lasts 3X Longer Than A High-speed Steel Drill Bit. 135 Point Angles With 4 Cutting Edges Which Eliminate Walking And Provide Fast Penetration. Black Oxide Tempering Treatment Reduces Frictional Resistance And Improves Chip Flow. Recommended For Wood, Plastic, Wallboard, Plywood, And Soft Metals Aluminum, Brass, And Bronze. For Occasional Use In Stainless Steel And Other Hard Metals.
Lasts 3X Longer Than A High-speed Steel Drill Bit. 135 Point Angles With 4 Cutting Edges Which Eliminate Walking And Provide Fast Penetration. Black Oxide Tempering Treatment Reduces Frictional Resistance And Improves Chip Flow. Recommended For Wood, Plastic, Wallboard, Plywood, And Soft Metals Aluminum, Brass, And Bronze. For Occasional Use In Stainless Steel And Other Hard Metals.