Turbo Segment Diamond Core Drill Bit Diamond Core Drill Bit According to experimental data, this turbo segment core drill bit has a slightly slower drilling speed than sharp drill bits, but its effective working length is increased, making it more suitable for DIY enthusiasts. (There may be variations depending on different drilling habits) A diamond drill bit *1An instruction manual *1 When used with water, it effectively improves drilling efficiency and extends the lifespan of the diamond drill bit. Know your diamond core drill bit Special formula Diamond content enhancement. The drill bit contains high-quality diamonds, making drilling holes effortless. Advantages of laser welding Refined appearance: The weld seam is aesthetically pleasing, with a smooth and even surface, enhancing the product's visual quality. Strong and reliable connection: The welded joint is secure and not prone to loosening or breaking. Know your diamond core drill bit Stable concentric shaft The stable operation of a diamond core drill relies on the three-in-one concentric shaft design. Only with such high-quality drill bits can drilling be both fast and steady. Widely applicable Diamond drill bits are highly effective for drilling in concrete, reinforced concrete, red brick walls, hard bricks, and other hard materials. HBKEEN Tools Diamond Core Drill Bit HBKEEN Our company specializes in producing high-quality diamond core drill bits.As a manufacturer with many years of experience, we are dedicated to providing our customers with efficient and durable drill bit products.Our products are widely used in various industrial fields and have earned a good reputation in the international market.Now, let me introduce you to our diamond core drill bit products.Different Models of Diamond Thin-Walled Drill Bits Available for Your Selection. Product Comparison 4" Diamond Core Drill Bit Add to Cart 4" Diamond Core Drill Bit Add to Cart 4" Diamond Core Drill Bit Add to Cart 4" Diamond Core Drill Bit Add to Cart Customer Reviews 4.0 out of 5 stars 28 4.4 out of 5 stars 3 4.4 out of 5 stars 114 4.5 out of 5 stars 4 Price $59.99$59.99 $64.99$64.99 $74.99$74.99 $75.99$75.99 Core Diameter Φ 4 inch Φ 4 inch Φ 4 inch Φ 4 inch Connection 5/8-11" Thread 1-1/4"-7 Thread 1-1/4"-7 Thread 1-1/4"-7 Thread Drilling Depth 9.5 inches 14 inches 14 inches 14 inches Wet or Dry Dry Wet Wet Wet Sharpness of blade teeth Durable Durable Sharp Sharp Precautions for Diamond Core Drilling During operation, ensure the water drill is securely fixed to prevent accidents. When working at heights, implement necessary safety measures. Before operating, check if the machine frame is firmly fixed and the drill bit is properly installed.Ensure there is sufficient water supply during drilling to prevent dry operation.During operation, the ventilation openings of the drilling machine must not be blocked to prevent the motor from overheating and burning out.When drilling into rebar, the current will suddenly increase. At this time, reduce the pressure on the drill bit appropriately, but not too much. If the current is too high, the protection switch will automatically shut off; if the current is too low, the drilling speed will slow down, increasing wear on the drill bit. When the concrete quality is poor, causing sand particles or a stuck drill, stop drilling immediately and do not force it. When encountering wooden blocks or asphalt felt, the current will also increase, but no strong vibration will occur, so you can proceed at normal speed.When drilling into the floor, drill slowly to prevent the drill bit from getting stuck due to sudden downward pressure.If the core gets stuck in the drill bit, remove the drill bit and flush the inner cavity with tap water, then carefully extract the core.The core drill can only be used in rotary mode, not in hammering mode.Adopt good safety measures before utilizing the diamond core drill bits.