
Carbide R32-57mm Retrac Drilling Bits for Drifting & Tunneling. Diverse Head Shapes: Tailored to tackle various rock formations and hardness levels for boosted efficiency. Robust Button Design: Equipped with 9 buttons ensuring maximum penetration and durability in hard rock. High Hardness & Wear Resistance: Meticulous treatment enhances overall hardness and extends product service life. Versatile Applications: Suitable for drifting, tunneling, bench mining, steel mills, and foundation engineering. Premium Materials: Constructed using Alloy Steel and Tungsten Carbides for demanding conditions. 100% Quality Inspection: Rigorous visual inspection and extensive testing before dispatch guarantee reliability. Fast Stock Delivery: 2-3 day turnaround available if requested size is in stock. Comprehensive Warranty: 6-month warranty includes free replacement for any quality issues.