Accupro ACC-HB3601500 Helical Boring Bar Solid Carbide

Product Description

The ACCUPRO ACC-HB3601500 is a helical boring bar machined from submicron solid carbide, designed for internal diameter boring operations on CNC lathes and boring mills. It accepts a minimum bore diameter of 0.36 inches and reaches a maximum bore depth of 1.5 inches, making it well suited for shallow to mid-depth finish boring passes. The 3/8-inch shank diameter and 2.5-inch overall length give it a compact, rigid profile that reduces chatter in tight setups. A bright finish coating is applied without additional surface treatment, preserving dimensional accuracy at the cutting edge. This bar is intended for use by machinists and toolroom professionals who need consistent, repeatable bore geometry in production or job-shop environments.

This helical boring bar is appropriate for ferrous and non-ferrous internal boring applications where a right-hand cutting direction is required. The submicron carbide grade supports higher surface speed and improved edge retention compared to standard carbide grades, making it a practical choice for finish boring passes in steel, cast iron, and aluminum. The 0.36-inch minimum bore diameter positions it for small-bore work where rigidity and clearance are both critical factors in achieving target surface finish and dimensional tolerance.

Key Features

• Submicron solid carbide construction for improved edge retention and wear resistance
• 0.36-inch minimum bore diameter suits small-bore finish operations
• 1.5-inch maximum bore depth supports shallow to mid-depth internal passes
• Right-hand cutting direction for standard lathe and boring mill setups
• 3/8-inch shank diameter for compatibility with common boring bar holders
• Bright finish coating with no additional surface treatment

Compatibility

Designed as an OEM-style replacement and standard-fit helical boring bar for 3/8-inch boring bar holders used in CNC and manual lathe or boring mill applications.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank fully in the boring bar holder to the manufacturer-specified projection length to maximize rigidity and minimize deflection. Confirm the cutting direction matches spindle rotation before engaging the workpiece. Always power down and lock out the machine spindle before changing or adjusting tooling.