Features: Engineered with premium carbide embeddeds grit, this dry drilling bit delivers rapid penetration and extended durability for concrete and masonry materials. The reinforced abrasive surfaces minimizes heat buildups, ensuring consistent performances during prolonged dry drilling operations. Design for professional contractors and DIY enthusiasts seekings reliable manual toolkit accessories for precise drilling tasks. Excels in water sensitive environment where lubricationfree operation is required for installing anchors or securing wall fixtures. Optimized flutes design reduces dust accumulation while maintaining bit stability in handheld hammer and impact drill. Specifications: Component:Carbide Grit Length:Approx.37cm/14.57inch Option Diameter:1.8cm/0.71in,2.50cm/0.98in,2.7cm/1.06inch; Quick Drying Concrete Drill Bit Package Includes: 1pc Water Milling Drill Bit note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.