165mm Bi-Metal Hole Saw, M42 HSS Bi-Metal Core Drill with Pilot Drill Bit for Heavy Duty Drilling in Iron, Aluminum, Wood, Drywall, Pipe, Fiberboard/Red

【Widely Used】 The hole saw is widely used in drywall, steel, aluminum, non-ferrous metals, copper, brass, wood, plastic, PVC, and other materials. Suitable for bench drills, electromagnetic drills, pistol drills, impact drills, etc.
【Professional Quality】 The bi-metal saws are made of premium M42 high-speed steel, which is sturdy and abrasion-resistant. The high-speed steel teeth are heat-treated - High hardness (65HRC) - Reusable and durable.
【Professional Hole Saw Material】 Our circular drill bit is made of heat-treated and blackened carbon steel. It has oil and rust resistance, high hardness, good toughness, and durability. The sharp blade is high hardness, wear-resistant during operation, chip-resistant, and reliable. Precise metal hole cutter without wobbling.
【Intelligent Design】 The hole saws for cutting circular holes use a spring-loaded design that promotes chip removal, resulting in superior drilling efficiency. The hexagonal handle closes securely. With its clean edge design, this hole saw kit is smooth and easy to use. The spring on the drill automatically pushes the disc out of the saw immediately after the hole is finished.
【Chip Removal Design】 The pre-slotted holes have a beneficial effect on chip removal, improving the speed of removing cylindrical iron chips from the hole.