Sumitomo 14EK291 Milling Insert DL1000 Solid Carbide Seet

Product Description

The SUMITOMO 14EK291 is a solid carbide milling insert designed for high-performance metal cutting in CNC milling applications. Featuring a square SEET insert style with a 20-degree relief angle, this insert carries the DL1000 manufacturer grade and is finished with a Diamond-Like Carbon (DLC) coating process. The cutting edge effective length measures 13.4 mm, and the insert thickness is 3.97 mm (0.1560 inches). The DLC coating enhances surface hardness and reduces friction, making this insert well-suited for demanding non-ferrous machining operations. It is installed by machinists and tooling technicians in shop and production environments.

This insert is intended for use on non-ferrous workpiece materials, designated by primary workpiece material code N. Typical applications include milling aluminum, copper alloys, and similar non-ferrous metals where a sharp, low-friction cutting edge is critical to surface finish and tool life. The L chip breaker geometry helps manage chip flow and evacuation during cutting operations. This insert fits toolholders designed to accept SEET-style square inserts in the 13T3 size class.

Key Features

• DLC (Diamond-Like Carbon) coating process for reduced friction and extended edge life on non-ferrous materials
• Square SEET insert style with 20-degree relief angle for positive cutting action
• Solid carbide construction throughout for consistent dimensional stability
• L chip breaker geometry for effective chip control and evacuation
• Insert size code 13T3 for compatibility with standard SEET-format toolholders
• Cutting edge effective length of 13.4 mm within the 0.5000 to 0.6000 inch length range

Compatibility

Designed for use in toolholders accepting SEET-style square milling inserts in the 13T3 size class. Optimized for primary workpiece material code N (non-ferrous metals). Thickness range 0.1500 to 0.1750 inches and length range 0.5000 to 0.6000 inches define the dimensional fit envelope.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the correct torque wrench and insert screw specified by the toolholder manufacturer — do not over-torque the clamp screw, as solid carbide inserts are brittle and susceptible to fracture under uneven clamping force. Inspect the insert pocket for debris or damage before seating the new insert.