100% Satisfaction Satisfaction Guaranteed. Screw Extractor/ Drill Bit Set, 35-Piece (11135ZR). Spiral Flute Extractor Set. 12.1 x 7.8 x 2.3 inches. 7.8 inches x 12.1 inches x 2.3 inches. Weight: 3.5 lb. Removes Broken Studs, Bolts, Socket Screws, And Fittings. Aggressive Left Hand Design Creates Extra Gripping Power. Easy Out Style Spiral Flutes Embed Themselves To Increase Grip As Resistance Increases. Extractor Sizes And Recommended Drill Bit Sizes Etched On Each Tool. Designed to remove broken studs, bolts, socket screws, and fittings, the IRWIN HANSON Screw Extractor and Drill Bit Set, 35 Piece, features an aggressive left hand design for extra gripping power. Easy out style spiral flutes embed themselves deeper into the metal as the tool is turned so grip increases as resistance increases. This handy set includes EX-1, EX-2, EX-3, EX-4, EX-5, EX-6, multi-spline extractors in sizes: 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″; and drill bits in sizes: 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″, 1/2, and a plastic case. For harder metals, choose a spiral screw extractor. We guarantee against any defective or misrepresented products.