70mm Hole Saw,Drill Bit,LAIWEI Hole Saw Heavy Duty Mandrel Hole Cutter for Drilling Wood,Thin Metal Sheet, Aluminum Profile, PVC and Other Materials,Electric Drill Tool(2-3/4(70mm))

• UPC   796917903939
• 【Use of A2 Hole Saw Mandrel】This 70mm hole saw (2.7inch hole saw) adopts A2 heavy duty mandrel, this mandrel is suitable for bi-metal hole saw: 60mm to 360mm. Locking Pin Design: The pin locks the saw in place to prevent over-tightening and thread loss. Safety lock design, easy to disassemble. No tools required, easy to put on and take off. You can set inset screws for quick and easy center bit replacement. [Material] The bimetal drill blade is made of high-quality HSS high-speed steel, which is sharp, corrosion-resistant, wear-resistant and durable. Center drills and tool holders are made of high quality M42 steel for excellent machinability and toughness. 【Feature 1】 LAIWEI hole saw adopts high-quality M42 steel and HSS high-speed steel, which is sharp and durable, and the cutting is clean and smooth. [2] The HSS center drill is equipped with a spring that pushes the chips out, reducing the time and effort to remove residue, reducing shock when drilling, and preventing damage to the insert and hole. 【Usage】Electric drill: used for drilling gypsum board, plastic, wood, plywood, thin iron plate, thin stainless steel plate, thin aluminum plate, etc. It is used for plumbing work, electrical work and all kinds of drilling work, from professional workplaces to the spread of do-it-yourself and DIY. [Compatible models] Electric drill, cordless electric drill driver. If precision is required, use a drill or drill stand to drill holes. 【Note】Start hole saw cutting with low speed rotation. Be sure to use perpendicular to the member. Do not tilt the drill in the middle. When cutting metal, sprinkle cutting oil or water on it. Wear protective equipment such as goggles and masks when using.