8-piece impact drill bit adapter set, hex screwdriver bits, 1/4", 3/8", 1/2" impact drill bit set

Type: Hex Bit; Quantity: 8 pieces; 1/4", 3/8", 1/2" hex socket set; a sturdy recessed magnetic handle securely holds standard hex bits and prevents them from falling out; 1/4", 3/8", and 1/2" hex drives can be quickly swapped out for drills, chucks, and wrenches; heat-treated chrome vanadium steel ensures maximum strength under normal and heavy-duty use; suitable for use with a screwdriver handle or electric drill (hex drive or three-jaw chuck); after installation, the original hex size can be converted to a square size. Use this to mount the socket.   Features: 1. 100% brand new and high quality. 2. The hex shank prevents overtightening during high-speed drilling. 3. Heat-treated chrome vanadium steel, extremely robust and impact-resistant. 4. Suitable for use with a screwdriver handle or electric drill (hex or three-jaw chuck). 5. After assembly, the original hex shape can be converted to a square shape. Use this to mount the sleeve. Specifications 1/4 x 1/4 x 50 mm Length------1/4'' Shank convertible to a 6.35 mm square head 3/8 x 1/4 x 50 mm Length------1/4'' Shank convertible to a 9.53 mm square head 1/2 x 1/4 x 50 mm Length------1/4'' Shank convertible to a 12.7 mm square head 1/4 x 1/4 x 65 mm Length------1/4'' Shank convertible to a 6.35 mm square head 3/8 x 1/4 x 65 mm Length------1/4'' Shank convertible to a 9.53 mm square head 1/2 x 1/4 x 73 mm Length------1/4'' Shank convertible to a 12.7 mm square head 12.7mm. Length 1/4 x 1/4 x 25mm – 1/4" shank, convertible to a 6.35mm square head. Length 1/4 x 1/4 x 30mm – 1/4" shank, convertible to a 6.35mm square head. Package Contents: 8 x Power Supply Extensions with Drill Nut