Accupro ACC-BB3202000 Boring Bar 0.32 in Right Hand Carbide

Product Description

The ACCUPRO ACC-BB3202000 is a solid carbide boring bar designed for internal diameter boring operations on lathes and turning centers. Built from submicron-grade carbide with a bright finish coating, this bar delivers consistent cutting performance in ferrous and non-ferrous materials. It accepts a minimum bore diameter of 0.32 inches and reaches a maximum bore depth of 2 inches, making it well suited for shallow-to-mid-depth precision bores. The 3/8-inch shank diameter fits standard tool holders, and the 4-inch overall length provides adequate clearance in most toolpost setups. Machinists and tool-and-die technicians typically specify submicron carbide bars where finish quality and edge retention are priorities.

This boring bar is used in precision turning and boring applications where tight tolerances and consistent surface finish are required. It is appropriate for production machining, job shop work, and maintenance machining environments. Right-hand cutting direction means the bar feeds from right to left in standard lathe orientation. The bright coating leaves the carbide surface uncoated, which is preferred when machining softer non-ferrous alloys or when regrinding is anticipated. The 0.32-inch minimum bore diameter makes this bar a practical choice for smaller-diameter through-holes and blind bores in workpieces mounted in a chuck or collet.

Key Features

• Submicron solid carbide construction for high edge retention and wear resistance
• Minimum bore diameter of 0.32 inches for small-diameter internal operations
• Maximum bore depth of 2 inches suitable for shallow and mid-depth bores
• Right-hand cutting direction for standard lathe feed orientation
• 3/8-inch shank diameter compatible with common tool holders and boring bar holders
• Bright finish coating — uncoated carbide preferred for non-ferrous and regrindable applications

Compatibility

Designed as an OEM-style replacement or direct-use boring bar for lathes and turning centers equipped with 3/8-inch boring bar holders or quick-change toolpost systems accepting that shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard toolroom procedures. Ensure the lathe is fully powered down and locked out before mounting or adjusting the boring bar in the tool holder. The bar should be clamped securely with minimal overhang beyond the holder to reduce chatter and deflection. Verify bore diameter and depth settings with a test cut before committing to final dimensions on finished workpieces.