[ Impact Rated]: - the heat-treated S2 steel with rust-proof blend flexes and is engineered to greatly extend the life of the bit tip and reduce stripping lasting up to 90 times longer than other bits. All heat treated to high hardness (HRC60+/-), high torque and abrasion resistance. [Precise Magnetic Tips Reduce Wobbling]:CNC milled magnetic tips for grip while reducing wobbling, stripping, and camming out. Prevent damage to the screw and greatly extend the life of the bit tip and reduce stripping. [Wide Versatile Color-Coded Bits]: Our carefully magnetic bit precision set bit are tagged with different colors according to their types and length for quick and . A wide assortment of bits to furniture repair, toys, construction, workshop, automotive, bicycle, industrial, DIY home improvement project. [Quick Change Bit Holder]: A robust magnetic rapid change bit holder is included. Any 1/4inch hex shank power tool, such as a drill or an impact driver, can be easily inserted. Bit changes are made quickly, and bit are to a minimum. 3 x S2 Steel Nut Drivers and 1 x S2 Steel Magnetic Extension Bit Holder are also included. [Patented Design Storage Box]: Our case not only comes in patented built in retractable bit stand but also clearly labelled bit parts for quick and easy use. The secure latch ensures bits stay in place while bringing along from to . colour: silver Material: alloy steel size: 21.01 x 20.90 x 3.20 cm Package Contents: 1 x 48 in 1 Magnetic Impact Driver Bit Set Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.