Efficient Heavy Bi Metal Cutter Cutting Opener: Enhanced Performance for Precision Cuts Review

【HIGH-SPEED STEEL】High-speed steel cutting edge provides shock resistant teeth and resists tooth strippage. Soft, spring steel creates a flexible backing material that allows the hole saw to absorb impacts of the job of drilling holes in difficult-to-cut materials.NOTE: Not recommend used in hard wood, hard metal and stone. 【DURABLE AND SAFETY】Construction of high quality Bi-Metal for rust proof, 2mm thick, make it have higher hardness (≥64HRC) and higher toughness than standard hole saw,much more durable and can offer a up to 50% longer life; great heat resistance. 【EASY TO USE】 In the course of the use you can easily distinguish between different models. Improve your productivity. You can according to the size of different models to meet your different requirements, easy to use. Only need to be based on different models you can play the hole you need, whether it is large holes or small holes. 【WIDE APPLICATION】 Versatile cutter that can be used in a wide variety of applications; Ideal for plumbing, construction, aircraft, electrical, maintenance and automotive applications. Suitable for Pistol Drill, Bench Drill,Vertical Drilling Machine etc. Widely used in Plate Hole, Home Wood, Galvanized Pipe, Fire Pipe, Plastic, Gypsum Board and Other Opening Operation. 【SEPARATE PACKAGING】12PCS Bi-Metal Hole Saw Kit.Include 11/16′′(18mm) , 13/16′′(20mm), 15/16"(24mm), 1-1/8"(28mm), 1-3/16"(30mm), 1-3/8"(35mm), 1-1/2"(38mm), 1-3/4"(45mm), 2"(50mm),2-3/16"(55mm),2-9/16"(65mm), 3"(75)mm,a variety of sizes can meet your different needs,the cutting depth is 1-3/16"(30mm). Each drill has a separate packing for easy carrying and finding the required specifications, also avoiding them from impacts in transit.