Accupro ACC-RAL16 Concave Radius Cutting Tool Bit

Product Description

The ACCUPRO ACC-RAL16 is a left-hand, concave radius cutting tool bit in the RAL style, designed for turning and profiling operations on metalworking lathes. It features a carbide tip brazed to a square shank body, providing the hardness and wear resistance required for consistent radius cuts in production and job-shop environments. The tool produces a 0.5 inch concave radius profile and measures 4.5 inches in overall length with a 0.75 inch tip length and a 0.1875 inch tip thickness. Machinists and tool-and-die technicians install this bit in a standard square-shank tool holder for lathe work requiring precise concave form geometry.

This tool bit is suited for use on engine lathes and turret lathes performing concave radius turning, grooving, or profile finishing cuts. The RAL style configuration with a left-hand cut orientation allows it to be fed from the tailstock toward the headstock, which is the appropriate direction for left-hand turning operations. It is commonly used in machine shops, maintenance and repair operations, and manufacturing facilities where repeatable concave radius forms are required on ferrous and non-ferrous workpieces.

Key Features

• Carbide tip construction for extended wear life in interrupted and continuous cuts
• 0.5 inch concave radius profile for consistent form turning
• Left-hand cut orientation — feeds from tailstock to headstock
• 0.75 inch square shank fits standard lathe tool holders
• RAL style geometry for concave radius applications
• 0.1875 inch tip thickness provides rigidity at the cutting edge

Compatibility

Designed for use in standard square-shank lathe tool holders accepting a 0.75 inch shank on engine lathes and turret lathes requiring a left-hand concave radius cutting profile.

Installation Notes

Installation is performed by a qualified machinist following standard toolroom practices. Secure the shank fully in the tool post or holder and ensure the cutting tip is set at the correct center height before engaging the workpiece. Inspect the carbide tip for chips or cracks before each use, as a damaged tip can affect radius accuracy and may fail under cutting load. Follow all machine guarding and lockout procedures before changing or adjusting tool bits.