Description
- 【High Quality Material】High-speed steel pedal drilling, higher quality than ordinary twist drilling, durable，Titanium coating reduces friction and heat，Nitrogen treatment (increases hardness and wear resistance)
- 【Multiple Sizes】 4-12mm, 4-20mm and 4-32 mm. Three drill bits can meet your different needs. Special cutting geometry Drills and deburrs even the thinnest sheet metal.
- 【Versatile Design】The step drill bit is durable and strong enough to punch and drill clean holes in materials like wood, plastic etc.1/4"(6.35mm) Hex shank design eliminate slipping in drill chuck.
- 【Multi-functional Scenarios】 this step drill bit set is perfect for various applications, including drilling in sheet metal, aluminium, copper, wood, plastic, and more. Not only can it enlarge holes, but it also deburrs, chamfers, and cutting.
- 【Kind tips】Only M35 step drills are suitable for stainless steel. Never use these HSS 4241 step drills to drill stainless steel.
