Tiangong High-Speed Cobalt Steel Step Drill Bit for Metal and Stainless Steel

The Tiangong High-Speed Cobalt Steel Step Drill Bit is designed for efficient and precise drilling into metal and stainless steel surfaces. Crafted with durable cobalt steel, this drill bit offers excellent heat resistance and longevity, making it ideal for heavy-duty use. Its step design allows for smooth, burr-free drilling through various hole sizes without the need for frequent bit changes. Perfect for both professional tradespeople and DIY enthusiasts, this tool ensures consistent performance and clean finishes in every project. Tool Handle Type: Triangle handle Cooling Type: External cooling Cutting Diameter (mm): 4-32 Shank Diameter (mm): 6-10 Chip Groove Length (mm): 4-32 Useful Length (mm): 4.1-8.2 Total Length (mm): 63-102.5 External Blade Angle (°): 118 Material: High Speed Steel Maximum Cutting Depth: 5MM per step Blade Size: 4-12,4-20,4-22,4-25,4-30,4-32,4-40,6-20,6-25,6-30 Blade Diameter: 4-32 Blade Length: 43-78.5 Specifications (diameter*total length): 4-12,4-20,4-22,4-25,4-30,4-32,4-40,6-20,6-25,6-30 Product Weight (kg): 0.1 Part Number: 4241,6541,M35 Pagoda Drill Manufacture country: China Instructions included: No