Left-Hand Mechanics Length Cobalt High Speed Steel Drill Bit Sets.
- Constructed of M-42 8 percent cobalt high speed steel for super abrasive resistance in tough metals.
- Includes: 5/64 inch, 7/64 inch, 5/32 inch and 19/64 inch, 135 degree split point.
- Heavy duty spiral flute design produces faster chip ejection.
- Shorter cutting lips reduce torque for drilling in high tensile strength materials.
- 135-degree split point reduces feed pressure for easier penetration without work hardening.
- Ideal for use with screw extractors.