>>> 【Retaining Ring】 These screwdriver bits have a collar that acts as a plug, preventing the bit from following the screw head into the drywall. The depth stopper design may limit screw penetration and damage the panel, once the collar comes in with the drywall, the drill cannot advance.
>>> Screwdriver】 Screwdriver Bits is made of high strength alloy steel, these screwdriver bits are very . Heat treated to resist breakage and wear, impact tool steel for maximum durability with a 1/4 "hex shank for use in bit holders.
>>> 【Magnetic head】 These screwdriver bits are magnetic head, so they can attach firmly to the screw. Strong magnetic, can easily suck screws when used. The bright color of the retainer ring allows you to observe clearly and easily, which is useful for your work.
>>> 【Widely Used】 These screwdriver bits have a wide range of applications, with 1/4 inch hex shank, designed to fit any electric drill and cordless drill for normal use.
>>> 【Service】 If you have any questions about our products, please feel to us. We will respond within 24 hours. Help >>> Need more help >>> us at the top of the page and select "Chat Customer Service".