Five piece extractor set designed to remove broken screws and bolts. Easy to use, just drill a pilot hole, insert the extractor and twist out the screw. Set includes sizes: #1 for sizes 3/32" - 5/32", #2 for sizes 5/32" - 7/32", #3 for sizes 7/32" - 9/32". #4 for sizes 9/32" - 3/8", #5 for sizes 3/8" - 5/8". 1 lbs (0.5Kg) shipping weight.