3-12mm 4-12mmcoated Stepped Drill Bits Hex Handle Drill Bit Metal Drilling. Features: Titanium Coated to Reduce Friction and Heat Two Flute Design Provides Faster, Smoother and Cleaner Cuts. Heat Treated and Highly Polished. Drill Makes Accurate Round Holes in Steel, Brass, Plastic, Wood Etc Item Describe: 100% Brand New and High Quality Type : Hexagonal Handle Ladder Drills Material: HSS 4241 Size: 3-12MM/4-12mm Color: Gold Function : 12mm: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm Suitable for : Use in the Hardness of 25 Below the Workpiece, Such As Carbon Steel, Thin Iron Plate, Insulation Board, PVC Board, Wood, Sheet Thickness Below 5MM Specifications: DIY Supplies: ELECTRICAL Type: Center Drill Bit Length: 3-12MM/4-32mm/4-20mm/4-22MM Use: Wood Drilling Model Number: 3-12mm Coated Stepped Drill Bits Material: High Speed Steel Package Included:1 X Hexagonal Stepped Drill . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.