Magnetic drill bit set features a torsion zone, absorbing torque and providing up to longer life.Impact duty screw driver bit set made from proprietary steel and heat treated to control hardness, magnetic anti slip screwdriver bits set feature an innovatively designed geometric shock absorption zone to extend life. The impact driver magnetic bits allows for a secure grip and maximum contact eliminating stripping or slipping. Broadly targeting cordless users, 1/4-inch hex shanks increases holding power and allows for quick change.So impact driver magnetic bits is not only ideal for heavy duty impact applications, but delivers a full system solution for all the user's drilling and fastening needs. This screws drill bits includes a variety of 1 inch and 2 inch impacts sizes and convenient storage case which ensure your bit of magnetic stonger magnet 1 inch set include 2pcs 6inch phillips #2 bits,1pcs 4inch Phillips #2 bits,2pcs 3inch phillips #2 bits,1pcs 2inch phillips #2 bits,1pcs 1inch phillips bits,2inch H3*1,H4*1,H5*1,H6*1,SL4,SL5,SL6,R1,R2,R3 and 1/4 bit holder*2.