MilesCraft 1302 Drive90. The only True 90 degree driver on the market gets into the smallest places. Toughest small right angle driver attachment on the market. Gears Housed in Die Cast Body for improved durability and performance. 3 sets of ball bearings provide long lasting and smooth operation. Ergonomic handle provides firm comfortable grip. Magnetic 1/4 inch Hex Socket accepts and holds standard 1/4 inch driver bits. 1/4 inch Hex Shaft fits most quick change and standard chucks. Three 1 inch Bonus Bits Included! Number 1 phillips, slotted, and square drive. Best results with this attachment are achieved with power drills at a maximum of 400 rpm. Intended for driving screws or drilling very small holes only. NOT intended for use with: Drill bits larger than 3/8 inch (Wood drilling applications) or 5/16 inch (Metal drilling applications), hole saw cutters (any size), or auger style bits (any size)