Drill Bit – IRWIN Unibit Step Drill Bit – 1/2″, 10310

Description

Item #: 10310

• 1/2″ hole size
• Shank size 1/4″
• Easy-to-sharpen, non-skid tip– eliminates skidding and the need for center punching; the tip gives sure starts even on curved surfaces.
• Single-fluted cutting edge– helps assure true round holes and allows greater control.
• Hardened steel for long life– constructed of industrial grade high speed molybdenum steel and heat treated to assure maximum durability.
• 3 Flatted shank– prevents slipping in drill chuck.