Accupro ACC-HB4803000 Helical Boring Bar Solid Carbide

Product Description

The ACCUPRO ACC-HB4803000 is a helical boring bar ground from submicron solid carbide, designed for precision internal turning and boring operations on CNC and manual lathes. It accepts a minimum bore diameter of 0.48 inches and reaches a maximum bore depth of 3 inches, making it suited for a range of short to medium-depth internal features. The 0.5-inch shank diameter provides a secure, rigid grip in standard boring bar holders, and the bright finish reduces built-up edge in many common workpiece materials. Overall length is 4 inches. Licensed machinists and toolroom operators are the primary installers and users.

This boring bar is used in precision machining environments including job shops, production floors, and toolrooms. Its right-hand cutting direction matches the standard spindle rotation of most CNC turning centers and manual lathes. The helical geometry promotes efficient chip evacuation during internal boring passes, which is especially useful when working in blind holes or deeper bores where chip packing can be a concern. It is appropriate for use on ferrous and non-ferrous workpieces where tight bore tolerances are required.

Key Features

• Submicron solid carbide construction for wear resistance and dimensional stability
• Helical flute geometry promotes chip flow out of the bore during cutting
• Minimum bore diameter of 0.48 inches suits small to mid-range internal features
• Maximum bore depth of 3 inches covers short to medium-depth internal passes
• Right-hand cut matches standard spindle rotation on most turning equipment
• Bright finish reduces friction and built-up edge on many workpiece materials

Compatibility

Designed as an OEM-style replacement and direct-fit boring bar for standard 0.5-inch boring bar holders used on CNC turning centers and manual lathes requiring a right-hand, helical-style internal cutting tool.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the machine is placed in an appropriate lockout state before mounting or removing the boring bar. Secure the 0.5-inch shank firmly in the boring bar holder to the tool manufacturer's recommended clamping procedure to minimize overhang deflection. Verify boring bar runout with a dial indicator before beginning a finishing pass.