Seimneire Adjustable Hole Saw, 1-3/16" to 11-3/4" (30 to 300mm) Heavy Duty Adjustable Circle Cutter Drill Bit Tool for Drywall Wood Plaster, Silver

Seimneire Adjustable Hole Saw, 1-3/16" to 11-3/4" (30 to 300mm) Heavy Duty Adjustable Circle Cutter Drill Bit Tool for Drywall Wood Plaster, Silver SUGGESTIONS FOR OPERATION 1. Before starting operation, check that all set screws are tightened. 2. If you use a power hand drill, you must hold it firmly with both hands during an operation to avoid accidents. 3. Start drilling with a slow drill rotary speed, or the centre bit may be shattered on first use. 4. Keep the drill bit stable when drilling, otherwise, the center drill bit may break due to excessive shaking. 5. When drilling, the distance on both sides should be equal. If they are not equal, the force will be uneven. 6. When cutting into walls, floors or ceilings, always check to ensure that no electric cables or water pipes etc are in the vicinity of the proposed cut. Specification: Material: Carbon Steel Cutting Diameter: 1-3/16" to 11-3/4" / 30 to 300mm Cutting Depth: 1/8" to 2" / 3 to 50mm Tool Handle Diameter: 3/8" / 9.7mm Package Contains: 1 x Adjustable circle hole saw 2 x blade 1 x hex wrench Warm Notices: 1. The colors may have difference as the different display, please understand 2. Please allow 1-2mm error due to manual measurement, and make sure you do not mind before you bid