【Professional Multi Size】 Including 1.27mm / 1.5mm / 2.0mm / 2.5mm /3.0mm rc hex driver bit
【High Quality】The drill bits made of high quality alloy steel, hardness is over 60, resistant to stripping & breaking, rust-free and durable
【Usage Versatility】Allen wrench set are 1/4 inch quick release hex shank driver bits fit for electric screwdriver, hand screwdriver, electric drills and air drills
【Clearly Marked】The wrench size is engraved on each handle for easy identification, make sure you have the right tools at hand when you use them
【Come with Magnetic】Magnetizable tips, can easily suck screws and hold the screws firmly, can improve your work efficiency