✓Complete 11-1/4 Inch Large Hole Saw Kit: Cuts clean 11-1/4 inch / 11.25 inch / 286mm diameter holes with a cutting depth of about 1-1/4 inch / 32mm. The complete kit includes 1 hole saw, 1 heavy duty arbor with pilot drill, 1 spare pilot drill bit and 1 hex wrench for easy assembly and replacement
✓HSS Bi-Metal Construction: Made with high-speed steel bi-metal teeth for sharp cutting, good wear resistance and smoother hole edges. The durable tooth design helps reduce binding and improves cutting efficiency on wood, drywall, plywood, plastic panels and other compatible materials
✓Large Diameter Drilling Applications: Designed for large-diameter drilling jobs such as HVAC vent openings, air duct holes, ceiling speaker cutouts, attic ventilation openings, woodworking projects, drywall ceiling holes and plastic or plywood panel installations
✓Compatible with Common Building Materials: Suitable for wood, plywood, MDF, particle board, plastic board, PVC, drywall, gypsum board, thin iron sheet and aluminum alloy. Not recommended for thick steel plate, thick stainless steel, tile, ceramic, marble, quartz, granite, concrete or stone
✓Easy Operation Tips: Use with a standard handheld drill. Start at low speed to create a stable groove, keep the drill straight, apply steady light pressure and clear chips during cutting. For thin metal, use slower speed and cutting oil when possible. Always wear safety goggles and gloves during operation
✓Professional Grade Cutting Depth: The 1-1/4 inch cutting depth provides sufficient penetration for most boards, panels and sheet materials commonly used in home improvement, renovation and professional installation projects