9Pcs Socket Adapter Drill Bits Set Hex Impact Driver Tools 

• 9-Pieces Hex Shank Socket Adaptor with Magnetic Bit Holder- High Quality Chrome Vanadium Steel.
• Hex Adapter for Square Drive - Make your woodworking easier.
• Perfect for impact driver or drill, and allows you to replace your ratchet with a power tool.
• The 1/4" hex shank air impact driver sockets fit all quick change chucks as well as standard drill chucks.
• This impact driver drill set is suitable for a screwdriver or electric screwdriver handle tools (hexagonal hole or three-jaw chuck) .Product Specifications:
• 4-Pieces 1/4" adapter: 25mm length, 30mm length, 50mm length, 65mm length --- can be converted to 6.35mm square head;
• 2-Pieces 3/8" adapter: 50mm length, 65mm length --- can be converted to 9.53mm square head;
• 2-Pieces 1/2" adapter: 50mm length, 73mm length --- can be converted to 12.7mm square head;
• 1-Pieces 2.5 Inch magnetic bit extension piece with a 1/4-inch bit end.