3 Review(s)

Specification: Brand new Material: High-speed steel 4241 Surface Treatment: titanium coated Shank Diameter: approx. 6.35mm (hexagon shank) Color & size: as picture shows Quantity: 3pcs 4-12mm: 4, 6, 8, 10, 12mm 4-20mm: 4, 6, 8, 10, 12, 14, 16, 18, 20mm 3-12mm: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm These step drills are very suitable for cutting holes in a variety of materials including steel, brass, wood, plastic and more. Features: Titanium coated to reduce friction and heat. High-speed steel step drill, nice quality and durable. These drill bits works great in making a smooth, clean and perfectly round hole. Suitable for punch holes through sheet metal, steel plate, aluminum plate, brass or wood. This drill bit set includes 3 sizes (3-12mm, 4-12mm, 4-20mm), which meet your different needs perfectly. Package included: 3pcs x step drill bits (other accessories are not included)