178mm Hole Saw, HSS Bi-Metal Hole Cutter with Drill Bit, Heavy Duty Hole Saw for Wood, Plastic, Drywall, Fiberglass, Red

【Premium Material】 Our 178mm hole saw is made of high-speed steel and bi-metal, which is durable and rust-proof. The slug holes around the saw are able to remove the wood chips while cutting, reduce friction heat and improve efficiency
【High Efficiency】 The bi-metal hole cutter with drill bit is layered with high-speed steel and the variable-pitch sharp teeth are combined with a non-binding clean edge, guaranteeing smooth and precise cutting every time
【Wide Application】 This hole saw is a perfect cutting tool for installing recessed light into the ceiling. It is suitable for a wide range of projects including home renovations, DIY projects, and professional tasks such as installing air ducts, speakers, ceiling lamps, and more
【Accurate Cutting】 The increased hardness of the carbide technology and optimized tooth geometry allow our drill hole cutter to provide faster and more accurate cutting than other hole saws. The spring mechanism automatically pushes the disc out of th