US PRO 25pc SCREW EXTRACTOR DRILL AND GUIDE SET for Broken Studs/Bolts 2632

Extracts screws and bolts. Can be used on thread sizes from 5mm to 16mm.Removes broken fasteners without breaking or jamming.Turns broken fasteners and screws out and permits highest torque expansionIncludes:HSS drill bits: 1/8", 3/16", 1/4", 5/16", 11/32"Extractor pins: #1, #2, #3, #4, #5Drilling guides: G1, G2, G3, G4, G5, G6, G7, G8, G9, G10Extractor nuts: N1, N2, N3, N4, N5Materials:Drill bits - HSS 4341 HRC 60-62Extractors - 6150 CR-V HRC 48-55