dashap 13PCS Bi-Metal Hole Saw Kit with Drill Bits, Carbide Hole Saw Set for Thin Metal and Wood, Cutting Diameter 3/4'' to 3''

TOUGH MATERIAL:Bi-metal construction, greater hardness, suited for those who want a quick and easy approach to achieve clean cuts. Zinc alloy substance, supreme endurance, anti-corrosion, and hard surface. PACKAGE INCLUDES: 13PCS bi-metal hole saws,cutting diameter contains 19mm(3/4''),20mm(25/32'').22mm(7/8").25mm(1").29mm(1-1/8").32mm(1-1/4").35mm(1-3/8").38mm(1-1/2").44mm(1-3/4").51mm(2").57mm(2-1/4").64mm(2-1/2").76mm(3"), 2 hex keys, individual mandrels, individual package for each hole saw. SUPERIOR PERFORMANCE: One-of-a-kind tooth blade for a speedier cutting experience. Eligible for rechargeable drills, portable hand drills, bench drills, electric drills, and other similar tools. When using our hole saw set, please use protective goggles and gloves for your safety. EFFECTIVE COOLING: Designed with an enlarged elliptical hole for easy removal of wood or metal filings and effective cooling. You may also use a coolant while drilling a hole in metal to prevent overheating. It can be water. WIDE APPLICATIONS: It is appropriate for use on wood, aluminum, thin metal, and plastic, with a cutting depth of 20mm, for the majority of routine tasks. However, do not use concrete, tile, or strong metal.