Value Collection 27603 Square End Mill 5/16 in 4 Flute Hss

Product Description

The VALUE COLLECTION 27603 is a single-end, 4-flute square end mill manufactured from M2 high speed steel. Designed for milling slots, pockets, and profiles in ferrous and non-ferrous materials, it features a 5/16-inch cutting diameter and a 3/4-inch length of cut. The 30-degree right-hand spiral helix promotes efficient chip evacuation and smooth cutting action. The bright/uncoated finish is standard for general-purpose HSS tooling. This end mill is sized for use in manual mills, CNC machining centers, and drill press setups where a 3/8-inch shank is required. Machinists and tool-and-die professionals are the primary users.

This end mill is suited for general-purpose face milling, side milling, and slotting operations in shops handling light to medium stock removal. The 3/8-inch shank diameter fits standard collets and end mill holders commonly found in both manual Bridgeport-style mills and smaller CNC vertical machining centers. The 2-1/2-inch overall length keeps the tool rigid in typical setups. It is not center-cutting, so it is not intended for direct plunge operations without a pre-drilled pilot hole or ramping entry.

Key Features

• 5/16-inch cutting diameter with 3/4-inch length of cut for slotting and profiling
• 4-flute configuration for improved surface finish on ferrous materials
• M2 high speed steel construction for durability in general-purpose machining
• 30-degree right-hand helix promotes chip clearance and reduces cutting force
• Bright/uncoated finish suitable for use with cutting fluids on a wide range of materials
• Non-center-cutting design — requires ramping or pre-drilled entry for plunge moves

Compatibility

Designed as a general-purpose replacement or stock end mill for setups requiring a 3/8-inch shank, 5/16-inch diameter, 4-flute HSS square end mill with a 3/4-inch length of cut.

Installation Notes

Installation should be performed by a qualified machinist with the machine powered down and the spindle fully stopped before tool changes. Seat the 3/8-inch shank fully in the collet or end mill holder and torque the retention hardware to the machine manufacturer's specification. Confirm runout with a dial indicator before beginning a cut. Because this tool is not center-cutting, program a ramp or helical entry when milling closed pockets.