Uxcell #0 #1 #2 #3 #4 1/4 Shank Titanium Coated Damaged Screw Extractor 4 Set (20 Pack)

Can easily remove stripped broken painted over rusted embedded screws and bolts from wood or metal surface. Suitable for hex bolts machine screws wood screws sheet metal screws threaded studs etc.. High speed steel tool has high hardness and toughness wear resistance and heat resistance. Titanium coating provides excellent corrosion resistance greatly improves wear resistance and hardness and reduces the coefficient of friction. Work with a power drill and always use a slow speed. The electric hand drill is recommended. Can not be used with the hammer drill. Quick change 1/4-inch hex shank can be used on power tools more easily and securely. Step 1: Use an appropriate drill bit (NOT included) to drill a hole (as deep as possible) in the damaged screw; step 2: install the screw extractor on the electric hand drill; step 3: reverse the extractor to remove the damaged screw. Tips: Must be used vertically and at a slow speed when drilling. If the damaged screw has a smooth surface drill the hole first. The speed needs to be set according to different materials usually the harder the material the lower the drilling speed.