Accupro ACC-RAD15 Concave Radius Cutting Tool Bit

Product Description

The ACCUPRO ACC-RAD15 is a RAD-style concave radius cutting tool bit designed for precision radius turning and form-cutting operations on manual and CNC lathes. It measures 4.5 inches in overall length with a 3/4-inch square shank and a solid carbide tip that is 3/4 inch long and 3/16 inch thick. The 15/32-inch concave radius profile makes this bit well suited for cutting internal curves, grooves, and contoured profiles into metal workpieces. Right-hand cutting direction means it feeds from right to left across the workpiece. Machinists and tool-and-die professionals working in job shops, maintenance facilities, and production environments rely on carbide-tipped form bits like this one for consistent, repeatable radius geometry.

This tool bit is used in lathe turning applications where a precise concave radius is required on a workpiece. The RAD style designates a specific form-tool geometry optimized for radius profiling. The 3/4-inch square shank fits standard tool holders sized for that shank dimension. Typical applications include shaft undercuts, bearing seat radii, and decorative or functional contour work on steel, cast iron, and similar materials. This is a single-piece item sold individually.

Key Features

• 15/32-inch concave radius for precise form-turning geometry
• Solid carbide tip for extended tool life on ferrous and hard materials
• 3/4-inch square shank for compatibility with standard lathe tool holders
• Right-hand cutting direction for conventional left-to-right feed operation
• 4.5-inch overall length with a 3/4-inch tip length and 3/16-inch tip thickness
• RAD-style form tool for repeatable radius profiles without secondary grinding

Compatibility

Designed for use in lathe tool holders that accept a 3/4-inch square shank. Suitable for manual engine lathes and CNC turning centers equipped with appropriate tool-post or turret holders sized for this shank dimension.

Installation Notes

Installation and use of this tool bit should be performed by qualified machinists familiar with lathe tooling and safe machine operation. Ensure the lathe is fully powered down and the spindle is locked before seating or removing tool bits from the holder. The tool bit must be clamped securely and set on centerline height to achieve the correct radius profile. Follow the machine manufacturer guidelines and applicable shop safety standards when selecting feeds, speeds, and coolant for carbide-tipped tooling.