The DZ-76 Rapid Screw Extractor kit is an innovative screw removal / extractor product released by ENGINEER (Japan) for quickly & easily removing Phillips type screws with damaged heads (Phillips sizes #0, #1 & #2 - including countersunk screws). A short promo video of a sibling product - the ENGINEER DBZ-60G - has bits which work in the same way (but simply has a different type of handle/grip) can be viewed on Amazon. Product Usage: If the screw's head is lightly damaged, insert the appropriate bit into the handle - for Phillips head Size #0 use the DBZ-58 bit, for Size #1 use the DBZ-57 bit and for Size #2 use the DBZ-52 bit - then simply press down firmly on the damaged screw to twist it out. If the screw head is heavily damaged and the screw size is Phillips size #2, then hammer the supplied DBZ-52 bit firmly into the screw head until it 'bites' (i.e. the bit can stand 'upright' on its own without being held) - then attach the handle, press down firmly to twist the screw out.