Makita T-00153 17 Piece Hex Shank Impact Drill & Driver Accessory SetMakita T-00153 17 Piece Hex Shank Impact Drill & Driver Accessory Set Features:; Impact drill and driver set; Pro-grade for impact driver use; Titanium coating reduces friction and increases drilling speeds in metal; 135 ° split point design for faster drilling and self centering action to prevent walking; Use for metal, wood and plastic; 1/4" hex shank; 17 pieces