High Speed Steel Step Drill Bits And Automatic Center Punch Punch Drill Bit Set For Home Use

Features: Professional set Ideal for drilling holes in hard metal material wood and hard plastic. Superior quality Made of high speed steel suitable for most general purpose applications offering a combination of hardness and toughness for wear resistance. Wide range use Multiple hole stepped up bits. The step drills have many steps which contain multiple diameters. It is convenient for you to drill different hole size by using a step drill rather than many drills so that you can save money and reduce trouble. Professional and personal use This drill kit is ideal for DIY projects at home garden workshop and many more. Specifications: Item Type: step drill center punch Material: high speed steel Color: golden Quantity: 1 set step drill size: 3--12mm/0.12-0.47 inch; 4-12mm/0.16--0.47inch; 4-16mm/0.16--0.63 inch Center drill size: 130mm/5.11 inch Weight: 150g/5.29oz Package: 3*step drill 1*center punch