Precision-Machined BT40/BT50 Boring Tool Holder for Heavy-Duty CNC Milling

Industrial-Grade Hardened Steel Construction ensures exceptional durability and vibration resistance during high-speed machining. Perfect for rough boring operations in aerospace, automotive, and mold manufacturing.

Optimized BST Interface delivers ultra-tight taper contact (0.0002" runout max) for superior accuracy in deep-hole boring up to 200mm diameter. Compatible with all major CNC milling machines.

Heat-Treated Chromium-Molybdenum Alloy extends tool life 3X longer than standard holders. Precision ground surfaces (Ra 0.4μm) prevent chip adhesion during wet/dry machining.

Multi-Size Adaptability includes 100/150/200mm boring ranges in one holder. Through-coolant ready design boosts efficiency in mass production of engine blocks or gear housings.

Exclusive Anti-Rust Electroplating protects against coolant corrosion. Laser-engraved depth markings enable quick setup changes between jobs.

Certified to ISO 1940 G2.5 balance standard for vibration-free operation at 8,000 RPM. Ships with inspection report and protective case.