Horn R312121000TN35 Grooving Insert TN35 Solid Carbide

Product Description

The HORN R312121000TN35 is a solid carbide grooving insert engineered for precision external and internal grooving operations on CNC lathes and turning centers. Built to Series 312 standards, this right-hand insert features a TN35 manufacturer grade, a screw-holding method for secure clamping, and a 12-degree lead angle. Maximum depth of cut reaches 8.00 millimeters, making it suitable for moderate-depth grooving passes. Solid carbide construction delivers the hardness and wear resistance needed for consistent edge life across a wide range of workpiece materials. Machinists and toolroom technicians working with production turning applications will find this insert a reliable fit for demanding cycle times.

The R312121000TN35 is rated for universal primary workpiece material compatibility, covering material groups K, M, N, P, and S. This spans cast iron, stainless steel, non-ferrous metals, steel, and heat-resistant superalloys. It is appropriate for both job-shop and production environments where a single insert grade must handle varied material runs without frequent grade changes. The screw-on holding method suits standard Series 312 toolholders, keeping setup time low during insert indexing.

Key Features

• Solid carbide substrate for high hardness and extended wear resistance
• TN35 grade suitable for universal workpiece material groups K, M, N, P, and S
• Right-hand orientation for standard turning and grooving setups
• Maximum depth of cut of 8.00 millimeters per pass
• 12-degree lead angle for controlled chip formation during grooving
• Screw-holding method ensures rigid, repeatable insert clamping in Series 312 toolholders

Compatibility

Designed for use with Series 312 toolholders. Compatible with workpiece material groups K, M, N, P, and S as specified by the manufacturer. Verify toolholder series and insert size code 121000 before ordering.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before seating or indexing the insert. Use the appropriate torx or hex key to secure the clamping screw to the toolholder manufacturer specification. Inspect the insert pocket and seating surface for chips or debris before clamping to ensure proper contact and prevent insert rocking.