Sumitomo 16JRW6L Pcbn Turning Insert Diamond BN2000

Product Description

The SUMITOMO 16JRW6L is a Polycrystalline Cubic Boron Nitride (PCBN) turning insert designed for precision material removal on difficult-to-machine workpieces. This uncoated insert features an 80-degree diamond shape (ANSI code NUCCGA32.50.5) with a 0.375-inch inscribed circle and a 0.0078-inch corner radius, making it well-suited for tight-tolerance finishing operations. The positive rake geometry and 7-degree relief angle reduce cutting forces and help maintain dimensional accuracy. Licensed machinists and tooling specialists install this insert in compatible indexable turning toolholders for high-performance single-point turning applications.

The 16JRW6L is intended for turning cast iron, hardened steel, and superalloys — workpiece material codes H, K, and S. Its BN2000 grade PCBN substrate delivers the hardness and thermal stability required for interrupted cuts and continuous finishing passes on materials that would rapidly wear conventional carbide. This insert is a neutral-hand, screw-held design with a 5/32-inch thickness and a 0.1730-inch hole diameter, consistent with standard CCG-series toolholder pockets. It carries ANSI and ISO 13399 compliance, with an ISO code of NU-CCGW09T302.

Key Features

• PCBN insert material provides extreme hardness for machining hardened steel, cast iron, and superalloys
• Uncoated BN2000 grade optimized for single-point turning on difficult workpiece materials
• 80-degree diamond insert shape with positive rake reduces cutting forces and tool pressure
• 0.0078-inch corner radius suits fine finishing and tight-tolerance turning operations
• Screw-held, neutral-hand design fits standard CCG-series indexable toolholders
• Compliant with ANSI and ISO 13399 insert identification standards

Compatibility

Designed as an OEM-style replacement and standard CCG-series PCBN turning insert for indexable toolholders accepting a diamond-shaped (C) insert with a 0.375-inch inscribed circle, clearance code C, and tolerance code G, per ANSI code NUCCGA32.50.5 and ISO code NU-CCGW09T302.

Installation Notes

This insert is installed by a qualified machinist or tooling technician into a compatible indexable turning toolholder. Always power down and lock out the machine spindle before seating or removing the insert. Use the appropriate torque wrench for the clamping screw to ensure proper seating without over-torquing. Confirm insert pocket and shim condition before each installation to maintain cutting-edge geometry and dimensional repeatability.