Hertel SHVNMA331630BN Turning Insert 3/8 Ic Pcbn

Product Description

The HERTEL SHVNMA331630BN is a polycrystalline cubic boron nitride (PCBN) turning insert designed for precision machining of hardened ferrous materials, cast iron, and superalloys. It carries manufacturer grade HT630BN and ships uncoated (bright finish), making it suited for high-speed finishing and semi-finishing passes where edge sharpness is critical. The insert features a 35-degree diamond shape (V code), a 3/8-inch inscribed circle, and a 1/64-inch corner radius. Holding method is clamp and pin, and the insert conforms to ANSI style SH-VNMA. Licensed machinists and toolroom technicians working on CNC lathes and turning centers are the primary installers of this insert.

This insert is used in turning applications involving hardened steels, powder-metallurgy parts, and hard cast iron where carbide tooling reaches its limits. The tight 1/64-inch corner radius supports fine-finish turning on close-tolerance diameters. The 35-degree included angle of the diamond geometry provides a sharp, low-cutting-force profile appropriate for interrupted cuts and contour turning on hardened workpieces. Typical install scenarios include production CNC turning cells and jobshop lathes running hard-turning operations as a grinding alternative.

Key Features

• PCBN insert material rated for hard turning of ferrous alloys and cast iron
• Manufacturer grade HT630BN, uncoated bright finish for consistent edge geometry
• 35-degree diamond insert shape (Shape Code V) for low cutting forces and contouring
• 3/8-inch inscribed circle with 3/16-inch insert thickness for rigid seating
• 1/64-inch corner radius (0.0156 inches) for fine-finish surface results
• Clamp and pin holding method for secure, repeatable positioning in toolholder

Compatibility

Designed for use in SH-VNMA style toolholders accepting a 35-degree diamond insert with a 3/8-inch inscribed circle, 3/16-inch thickness, and a 0.150-inch hole diameter. Consult your toolholder manufacturer specifications to confirm insert pocket and clamping compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with indexable insert tooling. Power down and lock out the machine before seating or indexing the insert. Use the appropriate torque wrench and clamping hardware specified by the toolholder manufacturer to secure the clamp and pin without cracking the PCBN blank. Inspect the insert pocket for chips or debris before seating a new insert edge.