Irwin Left-Hand Mechanics Length Cobalt High Speed Steel Drill Bit Sets – 30520

Left-Hand Mechanics Length Cobalt High Speed Steel Drill Bit Sets Features:

• Constructed of M-42 8 percent cobalt high speed steel for super abrasive resistance in tough metals
• 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
• Includes sizes 5/64″, 1/4″, 19/64″, 5/32″, and 7/64″