TEKTON 1/4 Inch Security Bit Driver and Bit Set, 37-PieceDBH93102

Includes 9-pc. 1/4 in. standard security hex bits: 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 in. ; 9-pc. 1/4 in. metric security hex bits: 2, 2. 5, 3, 3. 5, 4, 4. 5, 5. 5, 6 mm; 9-pc. 1/4 in. star security bits: TR7, TR8, TR10, TR15, TR20, TR25, TR27, TR30; 5-pc. clutch bits: 1/8, 5/32, 3/16, 7/32, 1/4 in. ; 4-pc. spanner bits:4,6,8,10; 1-pc. high-torque bit driver, The bits are made of S2 steel with a zinc-phosphate coating that resists corrosion, and they're designed to be longer than standard bits to improve your access to recessed fasteners, Bits are held onto the end of the driver by a magnet that's friction-fit within the receiver so that it can't fall out, Flexible rails securely grip the bits so they can't fall out, while also making it easy to remove any bit one-handed, The three-sided geometry of the driver handle provides the leverage you need to generate high turning force by hand, while round sections at the front and back ends of the handle create an ideal shape for quickly spinning long fasteners.