... in machinery/workpeices DXKS-350 Electric spark perforator / broken screw extractor / / remove broken taps, screws, bolts out of machine Description:1 ... a hole. 2. To remove or crush a broken screw in machine or metal sheet without any damage ... pictures ( machine with tap pictures, broken tap example, machine extractor head) broken screw extractor / remove broken taps, screws, bolts out of machine ...