Value Collection 720-3027 Square End Mill 5/16 in Hss

Product Description

The VALUE COLLECTION 720-3027 is a single-end, square-profile end mill ground from M2 high speed steel and finished bright/uncoated. It carries a 5/16-inch (0.3125-inch) cutting diameter, a 3/4-inch (0.750-inch) length of cut, and a 3/8-inch (0.375-inch) shank diameter, giving it a straight-shank fit in standard collets and end mill holders. Four spiral flutes with a 30-degree right-hand helix evacuate chips efficiently during peripheral and slot milling. Overall length is 2.5 inches. This tool is sized for light-to-medium material removal on manual mills and CNC machining centers where an uncoated HSS cutter is preferred or required.

The 720-3027 is suited for milling ferrous and non-ferrous metals, plastics, and general-purpose shop materials at moderate speeds and feeds. Its regular-length geometry and 3/8-inch shank make it a practical choice for job shop work, maintenance machining, and prototype operations. The bright finish avoids any coating compatibility concerns and allows easy visual inspection of cutting-edge condition after use. It is not center-cutting, so plunge milling is not recommended without a pre-drilled entry hole.

Key Features

• M2 high speed steel construction provides toughness and re-sharpenability for general shop use
• Four spiral flutes with 30-degree right-hand helix for efficient chip evacuation in slots and pockets
• Bright/uncoated finish for straightforward regrinding and visual edge inspection
• 3/8-inch shank diameter fits standard R8, ER, and other common collet systems
• Regular-length design minimizes overhang and deflection in typical bench-depth cuts
• Single-end configuration with right-hand cutting direction for conventional milling setups

Compatibility

Designed as a standard-shank replacement end mill for use in manual knee mills, CNC vertical machining centers, and similar setups accepting a 3/8-inch straight shank in an ER or equivalent collet or end mill holder.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked or e-stopped state. Confirm the shank is fully seated and the collet nut torqued to the holder manufacturer specification before running. Do not use this tool for plunge entry cuts, as it is a non-center-cutting geometry. Inspect the cutting edges and shank for damage or runout before each use.