BT40 NBJ16 Adjustable Fine Boring Head with Boring Bar Set

High-precision machining with hardened alloy steel construction for superior durability and minimal tool wear. Micro-adjustment dial ensures ±0.01mm accuracy, ideal for fine finishing operations in CNC milling and lathe work.

Premium tungsten carbide boring bars resist deflection and vibration, delivering smooth, chatter-free cuts in steel, cast iron, and non-ferrous metals. Interchangeable shanks (BT40 taper) optimize compatibility with most machining centers.

Engineered for tight-tolerance applications: aerospace components, automotive cylinder boring, and mold/die corrections. Anti-sliding lock mechanism maintains stability during heavy-duty operations.

Complete set includes multiple bar sizes (6mm-16mm) and hex wrenches for rapid tool changes. Ultra-fine threading allows effortless depth calibration under load.

Direct-from-factory pricing with bulk discounts—no middlemen, no inflated costs. Ships globally with OEM-grade packaging to prevent transit damage.