Kennametal 1937568 Boring Insert TPCB2201 KC5010 Carbide

Product Description

The KENNAMETAL 1937568 is a solid carbide boring insert designed for precision internal turning and boring operations on CNC and manual lathes. It carries the TPCB2201 insert style designation with the KC5010 manufacturer grade, a micrograin carbide substrate with a PVD-applied Titanium Nitride (TiN) coating. The 60-degree triangular geometry provides a reliable cutting edge profile suited for finishing and semi-finishing passes. With a corner radius of 0.002 inches and an inscribed circle diameter of 0.25 inches, this insert is built for tight-tolerance bore work where surface finish and dimensional accuracy are critical. Machining professionals and toolroom technicians install this insert in compatible TPCB-style boring bar holders.

This insert is suited for internal boring applications on ferrous and non-ferrous materials where a sharp, wear-resistant edge is required. The TiN coating extends tool life by reducing friction and resisting built-up edge, making it effective on steel and cast iron workpieces in both production and job-shop environments. The 11-degree relief angle reduces rubbing along the bore wall, supporting clean cuts at moderate depths of cut. It is typically used in small-diameter boring bars on CNC turning centers, manual lathes, and dedicated boring machines handling precision component work.

Key Features

• Solid carbide micrograin substrate for high hardness and edge integrity
• KC5010 grade with PVD Titanium Nitride coating for extended wear resistance
• 60-degree triangle (TPCB2201) geometry for multi-edge efficiency
• 0.002 inch corner radius for fine-finish boring applications
• 11-degree relief angle minimizes bore wall contact and reduces deflection
• 0.25 inch inscribed circle diameter fits standard small-bore toolholders

Compatibility

Designed for use in TPCB-style insert boring bar holders that accept a 1/4 inch inscribed circle triangular insert with a 0.096 inch thickness and a 0.130 inch hole diameter. Verify holder specification against insert size code 2201 before installation.

Installation Notes

Installation is performed by machining technicians using appropriate insert clamps or screws for TPCB-style toolholders. Ensure the machine spindle is fully stopped and the turret or boring bar is secured before changing inserts. Inspect the pocket seat and clamp for wear or debris before seating the insert, as contamination affects insert stability and bore accuracy. Follow the toolholder manufacturer torque guidelines for clamping screws to avoid insert fracture.