For extracting broken screws or threaded bolts from threaded holes without causing damage - salvage high-quality products Assortment of screw extractors for screws M5 to M20 (5-piece), can be used for right-hand and left-hand threads Material: CrV steel, hardened, surface finish: zinc-phosphated, polished cutting surface Service life varies depending on the hardness of the mating material Pre-drill the screw to be removed with a suitable drill bit, tap the extractor into the drill hole and loosen the screw
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