About this item 【High quality materials】Hanger bolt driver made of high quality alloy-steel,Twist drill made of high-speed steel (HSS) .Achieves an optimal balance of strength, toughness, and versatility.They can withstand strong torque, Processed with blackening/titanium coating treatments, corrosion-resistant, Long service life, can be used repeatedly for a long time. 【Standard embedded threads】Drill driver bits has a 1/4 standard hexagonal head, perfect match with electric drill. The internal threads of the drill sleeve are clear and the pitch is standard. Suitable for 1/4"-20 5/16"-18 3/8"-16 screws or bolts.The twist drill bit features two flutes, which automatically expel chips and debris during the drilling process, reducing friction and heat buildup, thereby enabling faster and safer drilling. 【Widely Used】The drill bit can bore holes in hard materials such as sheet metal/aluminum alloy, plastic, drywall,then it particularly excels at drilling into wood.Driver suitable for hanger bolt, double headed screws, fully all threaded rod.They are a complementary set, working together seamlessly. 【Fast and convenient】Safe, Fast and Convenient. The twist drill pre-drills a hole to prevent the hanger bolts from splitting the wood.Hanger bolt connected to driver, Installing screws becomes quick and effortless, Avoiding scratches from sharp screws. They are good tool for improving work efficiency. 【Thread Size】Driver thread: 1/4"-20 5/16"-18 3/8"-16, Length: 1-5/8", Shank: 1/4" hex power;Twist Drill:3/16 (for 1/4 Hanger Bolt) Length86mm 3-2/5inch,1/4(for 5/16 Hanger Bolt) Length101mm 4inch ,5/16 (for 3/8 Hanger Bolt) Length115mm 4-1/2inch. Overview Material: Alloy Steel Thread Size: 1/4"-20, 5/16"-18, 3/8"-16 Exterior Finish: Black Oxide Manufacturer Grade: Premium Head Style: Hex
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