HARFINGTON 8pcs Hole Saw Set 3/4" - 2-1/2" (19mm-64mm) HSS (High Speed Steel) Industrial Hole Saw Drill Bit Kit with Mandrels Hex Key Installation Plate for Metal Wood Plastic Plasterboard - hta230626hh000529

• Size - Cutting diameter: 19mm / 3/4", 22mm / 7/8", 25mm / 1", 32mm / 1-1/4", 38mm / 1-1/2", 44mm / 1-3/4", 54mm / 2-1/8", 64mm / 2-1/2". cutting depth: 28mm / 1-1/8". Hex / Round Shank Mandrels: drill diameter: 6mm / 1/4" / 5mm / 3/16", shank Size: 10mm / 3/8" / 6mm / 1/4" Material - Made of high-speed steel (hss), the hole saw kit offers excellent hardness, toughness, wear resistance, and heat resistance. The sprayed coating resists rust and corrosion. Features - Sharp toothed edges allow for smooth, fast and easy cuts. The hole saws have more cutting edges than carbide hole saws, ensuring faster cutting. Side chip holes facilitate chip removal and prevent clogging, and allow lubricant to reach the cutting area, extending tool life and cutting efficiency. Applications - The Industrial Grade hole saw set creates round holes in wood, plywood, plastic, plasterboard, 1mm thick aluminum sheet metal, density board (MDF), particle board, computer desks. Great for various applications such as door locks, hinges, cabinets, pipes. Note - Used with bench drills, drill presses, electric hand drill, cordless drill, etc..The cutting material must be fixed well, and at a 90 degree angle to the hole opener. Do not use on impact drills. Apply an appropriate lubricant, use proper speed and pressure and always wear appropriate safety gear.