200mm Hole Saw, Drill Bit, LAIWEI A2 Heavy Duty Arbor Mandrel Cutter for Drilling Wood, Aluminum Profile, PVC and Other Materials(7 7/8")

LAIWEI 200mm Hole Saw (7-7/8") is made of high quality cobalt-containing M42 high-speed steel for excellent sharpness, corrosion resistance, abrasion resistance, and durability.4341 Drill Bit is hardened for excellent machinability and toughness.A2 Heavy Duty Arbor Hole Cutter. LAIWEI A2 Heavy Duty Arbor Hole Cutter Versatile, A2 Heavy Duty Arbor fits most bimetal hole saws: 60 mm to 360 mm. LOCKING PIN DESIGN: Pins lock the hole saw in place, preventing over-tightening and slipping. Eliminates problems with hole saw thread failure and bits slipping and not working. LAIWEI premium cobalt-containing high-speed steel and ductile spring steel are electron-beam welded for high cutting performance. The use of combined spacing suppresses vibration during drilling and realizes high-precision machining. Hole Saw Drill bit is suitable for drilling gypsum boards, plastics, wood, plywood, thin aluminum boards, and thin metal plates. Suitable for plumbing, electrical and various drilling projects. [Compatible Models] Handheld drills and cordless drills. If precision is needed, use a drill press or drill stand to drill holes. [CAUTION] Hole saw starts cutting at low speed. Make sure to use it vertically. Do not let the drill bit go off center. Wear protective equipment such as goggles and gloves when using.