5 Pcs different sizes of bolt and screw extractors: No.1(M4-M6, 1/8"-1/4"), No.2(M6-M8, 1/4"-5/16"), No.3(M8-M11, 5/16"-7/16"), No.4(M11-M14, 7/16"-9/16"), No.5(M14-M18, 9/16'-3/4")
Heavy duty alloy steel extractor, black oxidation with whole body heat treatment to ensure high hardness and durability
Reverse threading, easily remove broken bolts, studs, pipes, fittings and damaged, peeled, rusted or cracked screws from any wood or metal surface
Square shank according to DIN 10, used by an adjustable tap wrench or a matching ratchet wrench
Easy To Use: Use a suitable size remover to drill a deep hole in the screw head and then reverse the screwdriver counterclockwise into the damaged screw until it is released
