Chip collection and durability - Chip collection during drilling toward the ceiling captures most chips and debris, helping keep the work area cleaner. The cutter is designed for high hardness and toughness with improved wear resistance for longer life. High efficiency and cutting quality - The 3-Nut Hole Saw Cutter easily handles dry walls and soft wooden boards. - Straight-tooth design delivers clean, precise cuts. - The adjustable hole saw provides smoother cuts and reduces burrs. Materials and versatility - This adjustable hole saw set is suitable for drilling holes in wood, plywood, plastic, gypsum, acrylic sheets, thin metal, and other materials. - An adjustable punching saw tool suitable for a wide range of home and woodworking projects. Adjustable range and efficiency - Cutting range: 45-130 mm. - Can cut holes of various diameters with a single tool; the adjustable round hole saw enhances work efficiency. Applications and use scenarios - Installing ceiling fixtures, electrical outlets, or cable pass-throughs in wood or drywall. - Creating holes for wiring, vents, or lighting fixtures in walls, ceilings, or furniture. - General DIY and woodworking projects that require multiple hole sizes without changing tools.