Kobalt 21-Piece Multipurpose Multi-Bit Handtool Set SF 221 Heavy Duty SpeedFit handle built identical to a ratchet with tool steel throughout Versatile system- can go from mechanics wrench to hammer to screwdriver in one easy click Includes 8oz Claw Hammer and 1/4inch hex shank connector Includes an assortment (10) 1inch driver bits- Phillips, Slotted, Star & Pozidriv Includes 3/8inch drive 3inch extension bar