Disston 135 High Speed Steel Split Point Drill Bit 5/16" x 4-1/2"
Description
"MASTER MECHANIC" HIGH SPEED STEEL DRILL BIT
- 5/16" x 4-1/2"
- M7
- Provide fast penetration
- Improves chip flow
- High speed steel, black oxide drill bit
- 135 split point, jobber length, straight shank
- 135 point angle with 4 cutting edges which eliminate walking
- Black oxide tempering treatment reduces frictional resistance
- For occasional use in stainless steel & other hard metals.
- Recommended for wood, plastic, wallboard, plywood & soft metals, aluminum, brass & bronze
- Carded.