Value Collection TCN50319D Turning Insert TPGB21.51 TCN55

Product Description

The VALUE COLLECTION TCN50319D is a solid carbide turning insert with a titanium nitride (TiN) coating, designed for use in CNC and manual turning operations. Conforming to ANSI insert code TPGB21.51 and ISO code TPGB110204, this insert features a 60-degree triangular shape with an 11-degree relief angle and positive side clearance. The inscribed circle measures 0.25 inches (6.35 mm) and the insert thickness is 0.0938 inches. A corner radius of 0.0156 inches (1/64 inch) provides controlled edge geometry suited to precision turning applications. It is held in place by a screw-mount method and is intended for use by machinists and toolroom professionals on CNC lathes and turning centers.

This insert is suited for turning applications involving steel and stainless steel workpiece materials, as indicated by primary workpiece material codes M and P. The TCN55 manufacturer grade with TiN coating supports general-purpose external turning where consistent edge life and surface finish are priorities. The chip breaker designation B is built into the insert geometry to assist with chip control during continuous cuts. This insert is packaged individually and sold in multiples of 10.

Key Features

• Solid carbide construction with TiN coating for extended tool life on steel and stainless materials
• ANSI insert code TPGB21.51 and ISO insert code TPGB110204 for cross-reference compatibility
• 60-degree triangular insert shape with positive side clearance and 11-degree relief angle
• Screw-mount holding method for secure, repeatable seating in compatible toolholders
• Built-in B-style chip breaker geometry for chip control in continuous turning
• Corner radius of 0.0156 inches supports controlled surface finish requirements

Compatibility

Designed as a direct-replacement turning insert for toolholders accepting TPGB-style inserts with ANSI size code 21.51 and a 0.118-inch hole diameter screw-mount configuration.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key to secure the clamping screw to the toolholder; do not overtighten. Inspect the toolholder pocket for chips or debris before seating the insert to ensure proper contact and seating.