Irwin HSS Cobalt Drill Bit 8.5mm OL:117mm WL:75mm

General description This cobalt HSS drill bit is designed for high-performance drilling in hard metals such as stainless steel and high-strength alloys. Made from high-quality HSS steel with an added 5% cobalt content, it offers excellent durability and heat resistance for demanding applications. Technical specifications Type: Cobalt HSS drill bit Diameter: 8.5 mm Total length: 117 mm Working length: 75 mm Material: HSS steel with 5% cobalt Point angle: 135° Finish: Gold surface treatment Shank type: Cylindrical Compatibility and accessories Suitable for use with standard drills and drill presses Compatible with materials such as alloyed steel, stainless steel, and metal Installation Insert the drill bit into the drill chuck and tighten securely Ensure the drill is set to appropriate speed for metal drilling Usage Use with proper cutting fluid to reduce heat and prolong tool life Apply steady pressure during drilling for best results Start drilling at a low speed, then increase as