MARXBORE™ Jobber Length Drill Bit, Heavy Duty, Series: 384, Imperial, #1 Drill - Wire, 0.228 in Drill - Decimal Inch, 3-7/8 in Overall Length, 2-5/8 in Cutting Depth, Standard Flute, 2-5/8 in Flute Length, 0.228 in Shank, Straight Shank, 135 deg Point, Split/Self-Centering Point, HSS Cutting Edge, No Through Coolant, HSS, Oxide Treated, Applicable Materials: Alloy Steel, Aluminum Alloy, Cast Iron, Composites, Copper Alloy, Low Carbon Steel, Magnesium Alloy, Medium Carbon Steel, Plastic, Stainless Steel, Titanium Alloy, Tool and Die Steel