Jimy 25 piece Screw Extractor Drill and Guide set

Description:
 
Range: 3/16″ to 9/16″ (5 to 16mm).
Fluted type extractors that provide a solid grip on broken studs and screws.
These screw extractors do not expand the screw while turning and their special design ensures a positive grip when driven into the drilled out hole.
Drill size is stamped on each extractor for ease of identification