Irwin 10235 #5 Unibit Step Drill Bit 1/4" - 1-3/8" Dia. Titanium Nitride-Coated Single-flute cutting edge for greater control through steps Hex shank prevents slipping in drill chuck New speed point tip penetrates faster than previous Unibits and prevents walking Application: For drilling holes Applicable Materials: Aluminum Brass Copper Plastic Stainless Steel Material: Steel High-speed steel bit with single flute cutting edge for greater control through steps. Hex shank prevents slipping in drill chuck. SpeedPoint tip penetrates faster and prevents walking in applications such as drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Shank Configuration Hex Trade Name Unibit Number of Flutes 1 Drill Diameter 1/4-1 3/8" Shank Type Hex Drill Size 1/4 to 1-3/8" Shank Diameter 1/2" Number in Package 1 pc Sub Brand Unibit Packaging Type Carded Overall Length 3-1/8" Product Type Step Drill Bit Material Steel Each Weight 0.400 LB Height 6.00 Length 1.25 Width 2.87 Brand Irwin Bit Material High Speed Steel Individual/Set Individual Product Height (in.) 6.1 Product Length (in.) 3 Product Width (in.) 1.5 Shank Style Hex ECCN EAR99 Product Weight (lb.) 0.43 Drill Bits Product Type Step Drill Bit Impact Driver Capability No Shank Diameter (in.) 1/4" Country Origin Code US Diameter 1/4 to 1-3/8" Finish Titanium Nitride-Coated Application For drilling holes Applicable Materials Aluminum Brass Copper Plastic Stainless Steel Cutting Edge Material HSS UNSPSC 27112801 Number of Steps 10 Cutting Diam [Max] 1-3/8 in Cutting Diam [Min] 1/4 in Shank Diam [Nom] 7/16 in Material Thickness [Max] 1/8 in