12° Tapered Drill Bits
KunXu Tapered Button Bits are the ultimate solution for hard rock drilling in mining, tunneling and construction applications. Built with aerospace-grade 35CrMoNiV alloy steel and premium tungsten carbide buttons, bulk tapered drill bits deliver 20-30% longer lifespan than industry standards while maintaining peak penetration rates.
12°Tapered drill bits features
Unmatched Durability
PowerCarbide® Technology: Proprietary carbide formula with 15% higher impact resistance
Reinforced Geometry: 12° tapered design + optimized button layout prevents skirt deformation
Multi-Layer Hardening: Triple heat-treatment process extends service life by 50%
Versatile Drilling Solutions
Diameter Range: 30-53mm (Custom Sizes up to 152mm Available)
Taper Options: 7°/11°/12° for granite, basalt & composite formations
Thread Compatibility: R25-R38, T38-T51, ST58/68, GT60 & SR systems
Smart Engineering Features
Anti-Blocking Channels: 360° spiral flushing system reduces dust retention
Retrac Skirt Design: Prevents jamming in fractured rock layers
Dual Wear Indicators: Visual & performance alerts for timely replacement
