Comprehensive 35-piece master extractor set, features spiral flute extractors for use with bolts/fasteners requiring less torque, multi-spline extractors when higher torque or restricted access is required and left-handed HSS drill bits, used to drill pilot holes (reversible drill is required), they often extract the fasteners/bolts themselves. Supplied in a blow-moulded storage case. Features & Benefits: • Comprehensive 35-piece master extractor set. • Spiral flute extractors for use with bolts/fasteners requiring less torque. • Multi-spline extractors when higher torque or restricted access is required. • Left-handed HSS drill bits, used to drill pilot holes (reversible drill is required). • Contents: Multi-Spline Extractors: 1/8'', 5/32'', 3/16'', 7/32'', 1/4'', 9/32'', 5/16'', 11/32'', 3/8'', 13/32'', 7/16'', 15/32'', 1/2'', Spiral Flutes: #1, #2, #3, #4, #5, #6, HSS 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"