
【TUNGSTEN CARBIDE】: Thicker, premium tungsten carbide with a reinforced head that prevents bit breakage. The surface is anti-rust treated, with good abrasion resistance and extreme hardness, extended service life. 【TRIANGULAR HANDLE】: The U-type slot design allows for quick dust removal of drilling dust. Triangular handle design, more stable operation, no slipping and no scratching, will not damage the glaze. (The cutting edge and hole are smooth and complete, leaving no burrs) 【PERFECT CUTTING】: The sturdy tungsten carbide tip with pointed design can easily penetrate various materials, easy to locate, drill stably, at a fast speed, not breaking the boundary, opening neat and smooth. (Rotating thread design, drilling and chip evacuation more smoothly) 【VARIOUS SIZES】: 6 PCS drill bits set with 4 different sizes (1 * 4mm, 2 * 6mm, 1 * 8mm, 1 * 10mm, 1 * 12mm). Carbide drill bits are built to last and will outlast conventional steel drill bits. 【MULTIFUNCTIONAL】: Suitable for glass,