Precision Tungsten Carbide Micro Hole Bore Reaming Cutter

Ultra-fine 0.3-3mm carbide cutter for flawless micro-hole finishing in metals/plastics. Industrial-grade tungsten carbide resists heat/wear 5X longer than HSS.

Mirror-finish 0.8μm surface tolerance - ideal for watch parts, medical instruments, and PCB drill bushings. Anti-vibration grooves eliminate chatter.

Compatible with mini lathes, dental drills, and CNC micromachining. Hardness reaches HRA92 for titanium/aluminum alloys.

Self-centering 60° tip maintains ±0.01mm accuracy. Includes corrosion-resistant TiN coating (optional).

Global wholesale pricing - MOQ 50pcs with OEM packaging. CE/RoHS certified.