●AN IDEAL ACCESSORY: Turns any ¼ cordless power screwdriver into a drill or grinder to quickly switch tasks and keep the job moving. ●EASY TO USE AND INSTALL:Keyless design,Instantly convert impact driver to hold non-quick change drill & driver bits. ●UNIVERSAL DRIVER: 1/4 Hex shank is suitable for most power tools such as electric drill, grinder, power screwdriver,Large capacity, it can be used for bits of diameter from 0.8mm to 8mm. ●EASY ON AND OFF: Keyless chuck converter to go from driving to drilling in seconds,Greater clamping force, effectively preventing drill bits loose off, more reliable. ●ONE-HANDED DRILLING: Gives you the freedom of one-handed drilling and is ideal if youre working in tight spaces