Product Information For Wood Boring Use Overall Length 165mm Heat Treated high Carbon Steel The 4-Flute Design Gives Ffaster Chip ejection and Less Binding During use Code Barcode Packaging Shipper Qty Size TDW1030 9328675031893 Double Blister 100 EACH 30MMX165MM TDW1032 9328675031909 Double Blister 100 EACH 32MMX165MM