Accupro ACC-HB1201000 Helical Boring Bar Solid Carbide

Product Description

The ACCUPRO ACC-HB1201000 is a helical boring bar ground from submicron-grade solid carbide and designed for right-hand cutting in small-diameter bore applications. With a minimum bore diameter of 0.12 inches and a maximum bore depth of 1 inch, this tool handles tight internal geometries where standard tooling cannot reach. The 1/8-inch shank diameter keeps the setup compact, and the bright finish coating reduces friction at the cutting edge. At 2 inches overall length and 0.0625 pounds, it is sized for precision work on CNC lathes, machining centers, and manual boring setups where rigidity and concentricity matter.

This boring bar is suited for production and job-shop environments requiring accurate small-bore finishing and semi-finishing passes. Typical applications include internal diameter profiling on parts with bore diameters at or above 0.12 inches in steel, aluminum, cast iron, and similar machinable materials. The helical geometry promotes chip evacuation in deep, narrow bores, reducing the risk of chip packing that can damage the workpiece or the tool.

Key Features

• Submicron solid carbide construction for high wear resistance and edge retention
• Minimum bore diameter of 0.12 inches for tight internal geometries
• Maximum bore depth of 1 inch with 1/8-inch shank diameter
• Right-hand cutting direction for standard lathe and boring mill setups
• Bright finish coating reduces friction and aids chip flow
• 2-inch overall length keeps tool overhang minimal for improved rigidity

Compatibility

Designed as an OEM-style replacement or direct-fit tooling solution for 1/8-inch bore bar holders and compatible tool blocks used in small-bore internal turning and boring operations.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle and turret are fully powered down and locked out before changing or setting tooling. Secure the shank firmly in the tool holder to the recommended clamping torque specified by the holder manufacturer, and verify runout with a dial indicator before taking a first cut. Follow shop safety protocols and applicable OSHA machining guidelines when setting depth of cut and feed rates for carbide boring bars.