Broken threaded screw extractor 5010re, 5-piece set. includes 5 extractors of different sizes with diameters of ø3, 4, 5, 6, 8 mm, specifically designed to remove broken or damaged screws from m4 to m16 with ease and precision. each extractor features a left-hand tapered thread, which means that as it is turned clockwise, it grips the broken screw more tightly, facilitating its extraction without damaging surrounding surfaces. made of high-strength steel. presented in a red plastic case.