* Quickly change bits on a power drill using the Magnetic Bit Holder.* Constructed with a chrome vanadium steel shaft, it is built to last.* A magnet retains bit in place for worry-free use.* Great for Working with Hard to Reach Screws* Holder accepts universal 1/4 in. hex shank bits.* Suitable for Electric, pneumatic screwdrivers and other screwdriver bits of power tools drill extended.