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

OverviewStep 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