●Master extractor set with spiral fluted and multi-spline extractors paired with matching left-hand cobalt drill bits ●For removing broken or difficult to remove bolts, screws, studs, pipes, set screws, and lugs that are below, above or flush with the work surface ●Includes spiral fluted extractors #1 - #6, multi-spline extractors 1/8" to 1/2" by 32nds, and left-hand cobalt drill bits: 5/64", 7/64", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 19/64", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32" and 1/2" ●BOX WITH BLACK BOX
●It's an internal left-handed spiral design.
●The left-hand drill bits is 4341# high-speed steel
●6pcs Spiral screw extractors made from 35#Cr-Mo (chrome-molybdenum steel)
●13pcs Multi-spline screw extractors made from 42#Cr-Mo(chrome-molybdenum steel)
●Drill bit with titanium coating, color same as picture
