Milwaukee 4932399212 10 Piece Screwdriver Hex Drill & Step Drill Bit Set 10pce 14 Hex Drilling Screw Driver Set Contains HSSG Drill Bits 3 35 4 5 6mm Screwdriver Bits 50mm Long PH2 PZ1 PZ2 TX25 Step Drill 3mm 13mm p Metal drill bits ground from solid high speed steel Manufactured from one solid piece of steel gives more concise concentricity greater rigidity therefore reducing breakages & means they can withstand high drill point pressure due to short overall length Split point shaped cutting tip according to DIN 1412C with 135º angle for enhanced centering so no centre punch required p Polished type N Flute with right hand cutting edge eliminates binding for faster chip removal & faster cutting with less effort p Suitable for drilling in steel cast iron alloyed & non alloyed material up to 900 Nmm 2 Also suitable for wood & plastics p All supplied in a handy Plastic case with foam insert