Value Collection 723-3918 Square End Mill 1 in 4 Flute Cobalt

Product Description

The VALUE COLLECTION 723-3918 is a 4-flute cobalt square end mill designed for general-purpose milling operations in ferrous and hard materials. Built from M42 cobalt high-speed steel, it offers greater heat and wear resistance than standard HSS tooling, making it well-suited for cutting stainless steel, hardened steels, and heat-resistant alloys. The 1-inch mill diameter pairs with a 1-7/8-inch length of cut and a 30-degree helix angle to balance chip evacuation with cutting stability. The bright, uncoated finish maintains a consistent edge without added coating buildup. This is a right-hand cut, right-hand flute, single-end configuration with spiral fluting and a centercutting geometry that allows direct plunge entry into the workpiece.

This end mill is intended for use in machining centers, knee mills, and manual or CNC milling setups where a 1/2-inch straight shank is the required interface. The regular-length profile and 4-1/8-inch overall length keep the tool rigid in standard spindle-to-part clearance situations. Typical applications include slotting, profiling, and side milling in job shop environments and maintenance machining. It is sold as a single-end tool in a package quantity of one.

Key Features

• M42 cobalt construction for improved heat resistance over standard M2 HSS
• Centercutting geometry allows direct plunge milling without a pre-drilled entry hole
• 30-degree helix angle promotes smooth chip flow and reduces cutting forces
• Bright uncoated finish suitable for use with cutting fluids on a wide range of materials
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Fractional inch sizing in a regular-length series for broad machine compatibility

Compatibility

Designed as an OEM-style replacement or standard tooling option for milling machines and machining centers accepting a 1/2-inch straight shank end mill with a 1-inch cutting diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the tool holder. Seat the shank fully into a properly sized collet or end mill holder and torque the retaining nut or set screw per the tool holder manufacturer specifications. Verify runout with a dial indicator before beginning a cut, and confirm that cutting parameters are appropriate for the workpiece material and machine horsepower.