Irwin 10234 - #4 Unibit 3/16" - 7/8"

Drill Bit Unibit Style/Step Drill 

• Size Range: 3/16"-7/8"
• Maximum Material Thickness: 1/8"
• Number of Holes: 12 steps
• Provides the user with a wide range of sizes/versatility
• Single-flute cutting edge for greater control through steps
• Hex shank
• New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
• Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates