
Efficient Tungsten Carbide Drill Bit with Internal Cooling Technology. Internal Cooling Technology: Features a center water outlet for smooth and efficient drilling operations. High Durability Material: Made from solid carbide to ensure long-lasting performance and precision. Versatile Application: Suitable for metal drilling, woodworking, and various CNC machine tasks. OEM and ODM Services: Offers full customization, minor customization, and flexible customization options. Strict Quality Control: 100% inspection including visual and function checks by trained staff. Fast Lead Time: Production completed within 15 workdays for both peak and off-peak seasons. Low MOQ: Minimum order quantity starts from just 1 piece. Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments.