Irwin 88886 Spade Drill Bit Set 6 in Overall Lg, Bright (Uncoated), 1 4 in Shank Hex Size, 6 Drill Bits G0412688 Application Bathtubs Application Bathtubs (9) Hose Adapters Shank Hex Size 1 4 in Item Spade Drill Bit Set Measurement System Fractional Inch Material Machining Carbon Steel Finish Machining Bright (Uncoated) Cutting Direction Right Hand Primary Material Application Wood Material Steel Alloy Drill Bit Material Carbon Steel Application wood drilling Number of Pieces 6 Drill Style Spade Sub Brand Speedbor Shank Type Machining Hex Adjustable Blade No Nail Cutting No Number of Drill Bits 6 Decimal Equivalent 0