Chicago-Latrobe Jobber Length Drill Bit, Heavy Duty, Series: 550, Imperial, #1 Drill - Wire, 0.228 in Drill - Decimal Inch, 3-7/8 in Overall Length, 5XD Cutting Depth, 2 Flutes, Right Spiral Flute, 2-5/8 in Flute Length, 0.228 in Dia x 1.25 in L Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8% Cutting Edge, No Through Coolant, M42 HSS-Co 8%, Uncoated, Applicable Materials: Alloy Steel, Stainless Steel, Titanium and Tool Steel