Kennametal 6143962 Square End Mill 3/8 in 3 Flute Carbide

Product Description

The KENNAMETAL 6143962 is a single-end, solid carbide square end mill designed for precision metal removal in demanding machining environments. It features a 3/8-inch cutting diameter, a 1/2-inch length of cut, and a 3/8-inch shank diameter with an overall length of 2 inches. The 3-flute geometry balances chip evacuation and surface finish, while the TiAlN coating provides thermal resistance and extended tool life in high-heat cutting conditions. A 30-degree helix angle promotes smooth cutting action, and the centercutting design allows plunge entry directly into the workpiece.

This end mill is intended for use on steel, stainless steel, and cast iron workpieces, covering ISO material codes P, M, and K. It belongs to the KC633M material grade within the Kennametal 3SE series, making it well suited for general-purpose milling, slotting, and profiling operations on CNC machining centers and manual knee mills in both job shop and production environments. The right-hand cut and right-hand spiral flute configuration is the standard orientation for most vertical and horizontal milling setups.

Key Features

• Solid carbide construction in the KC633M grade for rigidity and wear resistance
• TiAlN coating for high-temperature performance and extended tool life
• 3-flute, spiral flute design for balanced chip load and efficient evacuation
• 30-degree helix angle for smooth cutting action on ferrous materials
• Centercutting capability allows direct plunge milling without a pre-drilled hole
• Right-hand cut and right-hand flute — compatible with standard spindle rotation

Compatibility

Designed for machining steel, stainless steel, and cast iron. Suitable for use in standard 3/8-inch collets, end mill holders, or shrink-fit tooling on CNC and manual milling machines.

Installation Notes

Installation is performed by a machinist or CNC setup technician. The machine spindle must be fully stopped and the tool-change procedure completed per the machine manufacturer's guidelines before inserting or removing the end mill. Ensure the collet or holder bore is clean and free of chips before seating the shank. Verify runout after clamping to protect both the tool and the workpiece surface finish.