Bonsicoky 1-3/16" to 4-3/4" Adjustable Hole Saw Circle Hole Cutter Drill Bit, Heavy Duty Wood Drywall Drill Bit Round Cutting for Woodworking, 30-120mm

About Bonsicoky Bonsicoky provide high-quality and reliable hardware products to global customers. Bonsicoky product quality and innovation will continue to improve. I believe you will follow in the footsteps of Bonsicoky in the future. Feature The diameter of the hole can be adjusted according to the scale to make drilling more accurate and fast. The carbide blade is stronger, more durable and not easy to break, making the drilling sharper and faster. The boring diameter ranges from 1-3/16" to 4-3/4" (30mm-120mm). You can save the cost of multiple fixed-size hole saws. It is a new tool in the decoration industry, suitable for drilling of woodworking work, laminates, plastic, acrylic, plywood, composite, plaster, rubber, and cardboard. Specification Body Material: Alloy Steel Drill Bit Material: Carbide Alloy Extent of Boring Diameter: 1-3/16" to 4-3/4" (30mm - 120mm) Extent of Boring Thickness: 1/8" - 2" (3mm -50mm) Shank Diameter: 3/8" (10mm) Note: Not suitable for metal. 1.Before use, you need to tighten the drill bit and then drill to avoid injury caused by improper operation. 2.When the drill bit is working, please keep the angle perpendicular to the wood board for drilling. 3.When the drill bit is working, the distance on both sides must be equal, otherwise the force will be uneven and the drilling effect will be affected. 4.Try to avoid one-time perforation when drilling. It is recommended to drill for a while and then pause for a while, otherwise the blade will be easily damaged. 5. After drilling for a while, the sawdust must be removed. In the process of continuous drilling, the friction between the drill bit and the wooden board causes high temperature and easily causes the sawdust to catch fire. 6. Drill cuttings generated during the drilling process should be cleaned up with special tools and cannot be cleaned by hand.