DOUBLE BORING BAR HOLDER

Internal, External coolant supply

The Double Boring Bar Holder is engineered for CNC lathes and turning centers, designed to hold two boring bars simultaneously for improved machining efficiency. Supporting both internal and external coolant supply, it ensures optimal chip evacuation and tool life in deep-hole and precision bore operations. Manufactured to strict tolerances, the holder delivers exceptional rigidity and vibration damping, minimizing deflection during interrupted cuts or high-speed passes. The dual-bar configuration allows simultaneous roughing and finishing in a single setup, significantly reducing cycle time and non-cutting downtime. Compatible with Miyano system tool posts, it features precise shank clamping geometry to maintain positional repeatability within micron-level accuracy. The hardened alloy steel body resists wear under continuous production conditions, making it suitable for automotive, medical, and precision parts manufacturing. Key specifications include configurable boring bar diameters, standardized coolant port connections, and corrosion-resistant surface treatment. Ideal for applications demanding tight bore tolerances, concentricity, and surface finish consistency.