Accupro B490750A Boring Bar 0.49 in Min Bore Solid Carbide

Product Description

The ACCUPRO B490750A is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and machining centers. Built from submicron-grade solid carbide with an AlTiN finish coating, it delivers high hardness and heat resistance for extended tool life in demanding cutting conditions. The bar features a 0.49 inches minimum bore diameter and a maximum bore depth of 0.75 inches. The 0.5 inches shank diameter and 3 inches overall length make it a compact, rigid tool suited for tight-tolerance finishing passes in ferrous and non-ferrous materials. Right-hand cutting geometry is standard.

This boring bar is intended for precision machining applications where tight bore tolerances and fine surface finishes are required. Typical installations include finish boring on production CNC lathes, turning centers, and mill-turn machines in job shops and production machining environments. The submicron carbide substrate and AlTiN coating support dry cutting or minimal-coolant strategies at elevated cutting speeds, making this bar effective in high-productivity setups where tooling longevity is a priority.

Key Features

• Submicron solid carbide substrate for superior hardness and wear resistance
• AlTiN coating provides heat and oxidation resistance at high cutting speeds
• Right-hand cutting direction for standard lathe and boring setups
• 0.49 inches minimum bore diameter enables tight internal feature access
• 0.75 inches maximum bore depth suits shallow-to-mid-depth finishing applications
• 0.5 inches shank diameter for rigid, low-runout tool holding

Compatibility

Designed as a standard boring bar replacement for CNC lathes, turning centers, and mill-turn machines that accept a 0.5 inches round shank boring bar with right-hand cutting geometry.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the spindle fully stopped and machine power isolated per shop safety protocols. Secure the 0.5 inches shank in a compatible boring bar holder or tool block, ensuring adequate clamping length to minimize overhang and chatter. Verify tool offset and bore diameter with a bore gauge before committing to finish passes. Do not exceed the rated maximum bore depth of 0.75 inches for this bar geometry.