Kennametal 5059203 Square End Mill 3/8 in 3 Flute Solid Carbide

Product Description

The KENNAMETAL 5059203 is a solid carbide square end mill designed for precision milling in demanding machining applications. Built to the AADE series specification, it features a 3/8 inch cutting diameter, a 1-1/8 inch length of cut, and a 3/8 inch shank diameter with a 3 inch overall length. The three-flute, right-hand spiral design runs at a 35-degree helix angle, providing efficient chip evacuation and smooth cutting action. Micrograin carbide construction delivers the hardness and wear resistance needed for high-precision work in ferrous and non-ferrous materials. The bright, uncoated finish suits applications where coating is not required or where re-sharpening is anticipated.

This end mill is suited for slot milling, profiling, and peripheral milling in CNC machining centers and manual mills found in job shops, tool rooms, and production machining environments. The centercutting geometry allows plunge entry, expanding its use in pocketing and ramping operations. Its long-length classification provides added reach for deeper cavity work compared to stub or standard-length configurations. Licensed machinists, CNC operators, and toolroom technicians are the primary users of this tool.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• Three right-hand flutes with 35-degree helix angle for efficient chip flow
• Centercutting design enables direct plunge entry
• Bright, uncoated finish suitable for re-sharpening or where coatings are not required
• Long-length series AADE for extended reach in deep cavity applications
• Right-hand cut with standard straight shank for broad machine compatibility

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual milling machines accepting a 3/8 inch straight shank end mill holder or collet.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and locked out before changing tooling. Secure the shank to the specified clamping depth in the tool holder to prevent pullout during cutting. Verify runout with a dial indicator after seating the tool, as excessive runout will accelerate edge wear and reduce surface finish quality.