Specification: Material:Vanadium steel Color:Black/Blue Nut & Bolt Extractor Size: 1/4inch, 5/16inch (8mm), 3/8 inch, 10mm, 7/16 inch (11mm), 1/2inch, 12mm, 13mm, 9/16inch (14mm), 5/8 inch (16mm), 17mm, 11/16 inch, 3/4 inch (19mm) Flute Extractors Size: 1#(36mm), 2#(68mm), 3#(811mm), 4#(1115mm), 5#(1418mm), 6#(1721mm) Drill Bits Size: 5/64", 1/8", 5/32", 1/4", 9/32", 3/8" Size:1/4"-3/8" Hex Adapter Description Comprehensive Set: The package includes 13 broken nut and bolt extractors, 6pcs left hand drill bits, 6 screw extractors and 1 hex adapter (1/4 inch-3/8 inch), totally 26 pieces Reverse Design: The reverse design provides strong grip and torque for fixing bolts. The included 3/4 inch to 3/8 inch hexagonal adapter is standard 3/8 inch drives and can be used with impact wrenches, tap handles or ratchet wrenches Enduring Material: This broken nut bolt extractor set is made of molybdenum steel and 4341/6542 high speed steel (HSS), which have excellent endurance and hardness. The tool can remain in good condition after repeated use without worrying about breakage Easy Organization: tools are stored in a heavy duty blow molded storage box, which is sturdy and enduring, ensuring that the tools are stored in an organized, safe and stable manner for easy carrying and use. The surfacing of each extractor with size markings is easy to identify High Speed Steel Drill Bit: Titanium coated high speed steel drill bit features a 135° tip angle for easy cutting and reduced drag. The left hand design helps removal debris during drilling and reduces friction. When used in conjunction with an impact wrench, it enables more efficient drilling on broken bolts Package Includes: 1x26Pcs/Set Nut Extractor