Horn LS27415200610RTH35 Cutoff Insert Carbide TH35

Product Description

The HORN LS27415200610RTH35 is a solid carbide cutoff insert designed for parting operations on CNC lathes and turning centers. Built to Series S274 geometry, this insert features a 0.079 inch cutting width and a 15-degree left-hand lead angle, making it suited for precise groove and parting cuts where chip control and edge integrity are critical. The TH35 grade is a coated carbide, engineered to handle a broad range of workpiece materials. A 0.002 inch corner radius completes the cutting geometry. Machinists and tooling specialists rely on this insert for repeatable, high-tolerance parting performance in production environments.

This insert is intended for use in parting and grooving applications across a wide range of metallic and non-metallic workpiece materials. The primary workpiece material compatibility spans universal categories including cast iron, stainless steel, non-ferrous metals, steel, and heat-resistant superalloys, corresponding to ISO material groups K, M, N, P, and S. The left-hand configuration suits setups where tool orientation and spindle direction require a left-hand cutting approach. It seats in Series S274 compatible toolholders designed for this insert style.

Key Features

• 0.079 inch cutting width for precise parting and grooving cuts
• Solid carbide construction with TH35 coated grade for extended tool life
• 15-degree left-hand lead angle for controlled chip flow and directional cutting
• 0.002 inch corner radius for tight dimensional tolerances at the groove edge
• Universal material compatibility across ISO groups K, M, N, P, and S
• Series S274 insert style for use with matching S274 toolholders

Compatibility

Designed for use with Series S274 compatible toolholders that accept this insert style and size code.

Installation Notes

Insert seating and replacement should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked. Ensure the toolholder pocket is clean and free of chips or debris before seating the insert. Verify correct insert orientation for left-hand cutting direction before resuming operation. Follow the toolholder manufacturer's torque specifications for the clamping screw.