Kennametal 5059743 Corner Radius End Mill 3/4in 5 Flute Altin

Product Description

The KENNAMETAL 5059743 is a solid carbide corner radius end mill built for demanding material removal in steel, stainless steel, cast iron, superalloys, titanium, and hard materials. It carries a 0.750-inch mill diameter with a 0.015-inch corner radius and features five right-hand spiral flutes with a high helix angle of 43 degrees. The AlTiN PVD coating extends tool life in high-temperature cutting environments. At 5 inches overall length with a 2.25-inch length of cut and extended reach, this single-end tool handles both roughing and finishing operations. It belongs to KENNAMETAL Series UGDE and is produced from submicron-grade carbide for edge stability under load.

This end mill is suited for CNC machining centers in aerospace, die and mold, and general metalworking applications where a combination of reach and corner integrity is required. The straight cylindrical shank at 0.750 inches is compatible with HC-HSK Form A, Hydraulic Chuck Standard Line Inch KM63XMZ, and HC-CV Form AD toolholding systems. It is not center-cutting, so it is intended for peripheral and side milling passes rather than plunge entry. Normal pitch and fixed helix geometry provide predictable chip evacuation across the listed workpiece materials.

Key Features

• 0.015-inch corner radius protects the cutting edge and improves surface finish at shoulders and steps
• AlTiN PVD coating provides oxidation resistance and thermal hardness for dry or near-dry cutting in hard materials
• 5-flute configuration increases feed rate potential compared to 4-flute designs in the same diameter
• High 43-degree helix promotes efficient chip evacuation and reduces cutting forces in long-reach applications
• Extended reach design at 2.25 inches LOC suits deep pocket and cavity milling
• Submicron carbide grade delivers consistent edge wear performance in ferrous and exotic alloys

Compatibility

Compatible toolholding systems include HC-HSK Form A, Hydraulic Chuck Standard Line Inch KM63XMZ, and HC-CV Form AD. Primary workpiece materials are steel, stainless steel, cast iron, superalloys, titanium, and hard materials (ISO material codes P, M, K, S, H).

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and the tool is secure in a compatible toolholder before tightening. Verify runout at the tool tip before beginning a cut, as extended-reach end mills are sensitive to toolholder concentricity. Consult the machine tool manufacturer and KENNAMETAL cutting data recommendations for appropriate speeds, feeds, and depth of cut for the specific workpiece material.