Drill guides for accurate preparation & high torque fluted extractors with low expansion Excellent & easy to use tool for extracting broken studs, bolts & screws from 5 to 15mm Individual sized Drill Guides fit over the broken fastener & allows accurate centred hole drilling, avoiding damaging the thread The extractors have a Fluted Design that creates a solid grip that doesn’t expand the fastener when removing without breaking or jamming & reduces the effort required for the extraction HSS drill bits for ease of cutting & long life Easy to read Laser Etched sizes