DEWALT Extreme Metal Drill Bits are suitable for portable or stationary drilling of steel alloyed and non alloyed up to 900Nmm Particularly suited to drilling sheet or thin materials where accurate burr free holes are required Very effective in wood and plastic materials The patented split pilot point design eliminates walkingslipping on contact DT5921 10 Piece 1 2 3 4 5 6 7 8 9 10mm DT5923 19 Piece 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 85 9 95 and 10mm DT5929 29 Piece 1 15 2 25 3 32 33 35 4 42 45 48 5 55 6 65 7 75 8 85 9 95 10 105 11 115 12 125 13mm