Accupro ACC-HB4802500 Helical Boring Bar Solid Carbide

Product Description

The ACCUPRO ACC-HB4802500 is a helical boring bar machined from submicron-grade solid carbide for internal diameter boring operations on CNC and manual lathes. It features a right-hand cutting direction, a minimum bore diameter of 0.48 inches, and a maximum bore depth of 2.5 inches. The 0.5-inch shank diameter provides rigid tool holding, and the bright finish coating reduces built-up edge during cutting. With an overall length of 4 inches, this bar suits close-tolerance bore work in ferrous and non-ferrous materials. It is selected by machinists and tooling specialists who require consistent dimensional accuracy in production and job-shop environments.

This boring bar is suited for internal diameter finishing and semi-finishing passes where bore geometry and surface finish tolerance are critical. The helical flute geometry promotes chip evacuation during deeper passes up to 2.5 inches. Typical applications include bore sizing on turned components, fixture bores, and bearing-fit surfaces in both low-volume prototype and production-run settings. The submicron carbide grade supports higher cutting speeds and maintains edge integrity longer than standard carbide grades under consistent chip loads.

Key Features

• Submicron solid carbide construction for extended edge life and dimensional stability
• Helical boring bar geometry promotes chip clearance during deeper bore passes
• Right-hand cutting direction compatible with standard spindle rotation
• Minimum bore diameter of 0.48 inches suits small-bore internal turning operations
• Bright finish coating reduces friction and built-up edge on the cutting edge
• 0.5-inch shank diameter fits standard ER and straight-bore toolholders

Compatibility

Designed as an OEM-style replacement and standard tooling selection for CNC lathes and manual turning centers accepting a 0.5-inch shank boring bar in a straight-bore or collet-style toolholder.

Installation Notes

Installation is performed by machining technicians and CNC setup personnel. Secure the 0.5-inch shank in a properly sized boring bar holder and confirm tool overhang does not exceed recommended length-to-diameter ratios for the material being cut. Power down and lock out the spindle before mounting or removing any cutting tool. Do not exceed the bore depth capacity of 2.5 inches in a single setup, and confirm workpiece clamping before initiating a cut.