Precision Small Hole Boring Bar for CNC Lathes

Hardened alloy steel body with anti-vibration tungsten carbide tip ensures extreme durability and chip-free machining. Micro-groove coolant channels prevent heat buildup during high-speed operations.

Ultra-slim 12mm shaft diameter accesses tight spaces in aerospace components, medical instruments, and watchmaking parts. Ground finish maintains ±0.005mm tolerance for mirror-grade bores.

Patented SVJBR11 geometry reduces deflection by 40% compared to standard boring bars. Includes vibration-dampening rubber sleeve for whisper-quiet operation at 3,000+ RPM.

Compatible with Haas, Mazak, and Doosan lathes. Ships with ISO-certified calibration report and hex key set. Bulk discounts available for machine shop fleet outfitting.