6 Pieces Titanium Coated Drill Bit Set 3pc Step Drill Bit 4-12mm 4-20mm 4-32mm 3pc Twist Drill Bit 3mm 6mm 8mm for DIY Plastic Wood Metal Aluminum Copper Drilling

Step Drill Bits: 118 ° Beveled Edge 118° X-shaped opening design, more precise positioning, reduce drill slip effectively. Triangle Shank Universal triangle shank, sturdy and durable, not easy to slip. Unique Design Double straight groove, fast punching and smooth chip removal. Twist Drill Bits: 135 ° Beveled Edge The 135 ° split point with straight shank prevents walking, the sharp edge makes drilling faster and more effective. Serrations Chip Evacuation The sharp serrations belt design quickly decreases friction and heat for a faster and cooler drilling performance. Round Shank Handle The round shank is suitable for electric drills and bench drills and is fastened without slipping. Clear Size Marking Clear size markings on the end of the handle for easy identification and use of each drill. Features: Made of high speed steel material, stable and durable to use. Titanium plating treatment. Two flute design for faster, smoother cutting. The step drill bits set replaces 29 individual drill bits. High strength, hardness and easy to use. Suitable for drilling in wood, plastics, steel, aluminium and other non ferrous metals. Specifications: Material: High speed steel Color: Gold Surface Treatment: Titanium Plating Step Drill Bits: 4-12mm / 4-20mm / 4-32mm Saw Drill Bits: 3mm / 6mm / 8mm Package List: 3 x Step Drill Bits 3 x Twist Drill Bits • Premium Material: Step drills are made of high-quality bearing steel, titanium-plated surface, anti-oxidation, no rust, wear-resistant, long service life. • Unique Design: With three-sided shank and a two-flute cutting head, which allows for faster and smoother cutting, reducing the risk of chipping or splitting when drilling through hard materials. • Time Saving: Cone drill has 29 different opening sizes: from 4 mm to 32 mm. you can drill or enlarge different holes with one drill bit without constantly changing bits, saving you a lot of trouble. • What You Get: 1 x 4-12mm, 1 x 4-20mm, 1 x 4-32mm step drill bit, 3 x HSS twist drill bits, comes with a portable plastic box for easy storage and organization. • Widely Use: These drill bit set can used to cut holes in a variety of materials such as panel, aluminum, insulation board, PVC board. It's suitable for household manual work and general construction.