HARFINGTON Bi-Metal Hole Saw Kit 178mm / 7" Dia M42 High-Speed Steel Hole Saw Drill Bit Cutter with 3/8" Hex Shank Arbor Center Drill Wrench for Wood Plastic Drywall Plywood

1. The cutting edge is made of M42 high-speed steel, which provides the hardness and wear resistance required for cutting, and can withstand higher cutting temperatures, reducing the risk of breakage and extending the service life of the hole saw.2. Set includes a metal hole saw, a hex shank mandrel, 2 center drills, and a wrench. The center bit and spring guide ensure precision and control.3. Not only is it capable of cutting wood, plywood, plastic, drywall, soft plaster, sandbag board, acrylic board, and soft metals, it is also suitable for drilling holes to install can lights, recessed lights, ventilation ducts, home improvement or other similar applications in the workshop.4. Metal hole saw kits can be installed on hand drills, impact drills, bench drills, and CNC drill presses. Before making any adjustments or replacing the hole saw, make sure the drill or drill press is turned off and unplugged.5. The hole saw drill bit can be used to punch holes on 2mm thick stainless steel. It is not suitable for thick steel plates. The operating speed is best to start slowly and then increase it.

• Size - Bi-Metal Hole Saw Cutting Diameter: 178mm / 7"; Working Depth: 40mm / 1.6"; Arbor Hex Shank Size: 3/8"; Overall Length:91mm / 3.6". Package Includes: 1pcs hole saw, 2pcs center drill, 1pcs wrench.
• Material - Bi-metal hole cutter is made of M42 high-speed steel, which provides the hardness and wear resistance required for cutting, and can withstand higher cutting temperatures, reducing the risk of breakage and extending the service life of the hole saw.
• Precise Positioning and Efficiency - The center drill bit and spring guide ensure accuracy and control. Burr-free edges and sharp teeth make hole saw blades cut smoothly and quickly.
• Application - The hole saw drill bit is not only capable of cutting through wood, plywood, plastic, drywall, soft plaster, sandbag board, acrylic board, and soft metal, but is also suitable for drilling holes in the workshop to install can lights, recessed lights, ventilation ducts, home improvement or other similar applications.
• Note - The metal hole opener kit can be installed on hand drills, impact drills, bench drills and CNC drill presses. It can be used to make holes in 2mm thick stainless steel. It is not suitable for thick steel plates. The operating speed is best started slowly and then gradually increased.