Accupro ACC-BT4 Single Point Tool Bit Box Turning

Product Description

The ACCUPRO ACC-BT4 is a single point tool bit designed for box turning operations on manual and CNC lathes. Built to industry standard BT-4, it features a micrograin solid carbide tip brazed to a steel shank, delivering the edge retention and heat resistance required for consistent turning performance. The shank measures 0.25 inches wide and the overall length is 1.5 inches, making it a compact, rigid tool suited for tight clearance applications. A right-hand cutting direction means material feeds from right to left in standard lathe orientation. Machinists and tool-and-die techs reach for this style when turning box profiles or similar internal and external contours that demand precise, repeatable cuts.

The ACC-BT4 is suited for turning applications where a short, stiff tool bit is preferred to minimize chatter. Its 0.625-inch maximum depth of cut accommodates moderate stock removal on ferrous and non-ferrous workpieces. Typical install scenarios include manual engine lathes, turret lathes, and CNC turning centers using standard BT-4 tool holders. This bit conforms to the BT industry standard number BT-4, so it seats correctly in compliant holders without modification.

Key Features

• Micrograin solid carbide tip for superior edge retention and wear resistance compared to standard carbide grades
• Right-hand cutting direction for conventional lathe feed orientation
• 0.25-inch shank width fits standard BT-4 compatible tool holders
• Maximum depth of cut of 0.625 inches supports moderate material removal passes
• 1.5-inch overall length provides a compact, rigid profile that reduces vibration during turning
• Meets industry standard BT-4 for drop-in holder compatibility

Compatibility

Designed as an OEM-style replacement and standard fit for tool holders accepting BT-4 single point tool bits with a 0.25-inch shank width. Conforms to industry standard number BT-4.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the lathe spindle before seating or removing tool bits in the holder. Ensure the tool holder set screw torque and bit seating depth comply with the machine tool manufacturer specifications. Inspect the carbide tip for chipping or cratering before each use and replace the bit if edge damage is present.