4"/105mm Hole Saw Bit, Bimetal Professional Wood Circle Cutter Drill Bits with Connecting Rod, Blade for Cutting Soft Metal

【Material】The hole saw is made of M42 bi-metal, which has higher hardness, higher toughness, impact resistance, wear resistance and rust resistance, equipped with drill bit hardware. The drill has sharp edges, less vibration, more stable operation, and can cut holes quickly and balanced. 【Hole Clearing】After drilling, the spring on the drill bit will automatically push the disc out of the saw; the drill bit is equipped with a chip removal hole, which improves the chip cleaning speed. 【Application】Suitable for drilling holes in gypsum board, plastic, wood, plywood, thin iron plate, thin stainless steel plate, thin aluminum plate, etc. It can be used in plumbing engineering, electrical engineering and various drilling work, suitable for electric drills and cordless electric drills. 【Note】 1. Please be sure to use it perpendicular to the component. Do not tilt the drill from the middle. 2. Rotate at low speed to start hole saw cutting. 3. When cutting metal, sprinkle cutting oil or water on it to lubricate and cool. 4. Wear goggles, and other protective equipment when using.