Accupro ACC-BBL200700 Boring Bar Left Hand Solid Carbide

Product Description

The ACCUPRO ACC-BBL200700 is a left-hand cut boring bar machined from submicron-grade solid carbide. It is designed for internal boring operations on CNC lathes and manual turning centers where precise, small-diameter bores are required. The bar features a 0.2-inch minimum bore diameter and a 0.7-inch maximum bore depth, making it well-suited for tight, shallow bore work. The 1/4-inch shank diameter and 2.5-inch overall length keep the tool compact and rigid. Machinists and tool-and-die professionals install this bar in standard boring bar holders on production or job-shop turning equipment. The bright finish coating leaves the carbide substrate exposed for visual inspection.

This boring bar is applied in precision turning operations requiring left-hand cutting geometry. Left-hand cut orientation accommodates specific workpiece setups, back-boring configurations, or spindle rotation directions where a standard right-hand bar is not appropriate. The submicron carbide grade provides hardness and wear resistance suited to ferrous and non-ferrous materials at moderate to high cutting speeds. It is a single-unit item packaged individually, appropriate for toolroom stock or direct machine-side use.

Key Features

• Left-hand cutting direction for back-boring and specialty setups
• Submicron solid carbide grade for superior wear resistance and edge retention
• 0.2-inch minimum bore diameter enables small, precise internal features
• 0.7-inch maximum bore depth suits shallow bore applications
• Bright finish coating with no additional surface treatment interference
• Compact 2.5-inch OAL with 1/4-inch shank for rigid tool holding

Compatibility

Designed as a direct-fit boring bar for standard 1/4-inch boring bar holders used in CNC and manual turning center applications requiring left-hand cut geometry.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. The machine spindle must be stopped and the turret or tool post fully de-energized before mounting or removing boring bars. Secure the shank firmly in the tool holder to the holder manufacturer's specified clamping method to prevent chatter and tool pull-out. Verify cutting direction and spindle rotation match the left-hand geometry of this bar before engaging the workpiece.