5 Pieces Drill Bit SetColor: SilverColor: As picture showCompared with three-point wood drill, with a quick change hexagonal handle, handle diameter 6.35mm (1/4 "), fixture is more stable, more convenient to replace. For electric screwdriver can be mounted 1/4 hexagonal handle electrical tools.Size: 4mm 5mm 6mm 8mm 10mmHigh angle split point recudes feed pressure for easier penetration without adding extra stress or difficulty to your work.Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above.Material: High Speed Steel.