CTA Lug Nut RemoverWheel Lock Remover Tool Kit2-Piece SetFits Medium & Large Nuts/LocksSpecifications:Black FinishHardened Steel Construction1/2" DriveFits standard nuts & locks with Outside Diameters (not socket size) from 3/4" to 15/16"Outside Diameter = 1-1/4" & 1-1/8"Overall Length = 1-1/2"Inside Diameters = Medium (Tapers from 13/16 down to 3/4"), Large (Tapers from 15/16" down to 13/16")2 Piece SetReverse Internal ThreadsFeatures:Easily remove stripped or damaged lug nuts or locks.Heavy impact-grade hardened steel will not split or crack.Standard 1/2" square drive socket.Deep reverse-tapered internal threads to grip the nut or lock. If you have lost your wheel lock key or your lug nuts are stripped then this 2-piece Emergency Lug Nut Remover Socket Set is just the ticket. These impact grade sockets feature a 1/2" drive and a reverse tapered internal thread design which grips the nut when rotated counter-clockwise. Simply use your 1/2" drive impact wrench to remove the lug nut or wheel lock by setting your wrench to loosen (counter-clockwise) mode and the reverse threads will grip the nut and spin it right off. Once it is off, then simply clamp the nut in your vise and switch your impact wrench to tighten (clockwise) mode and you're done. Maximum recommended air pressure is 90 psi.