Value Collection 723-9219 Square End Mill 0.8661 in Cobalt

Product Description

The VALUE COLLECTION 723-9219 is a cobalt square end mill designed for material removal in ferrous and high-temperature alloy machining applications. Built from M42 cobalt high-speed steel, it delivers the heat and wear resistance needed when cutting steel, stainless steel, cast iron, and high-temp alloys. The mill measures 0.8661 inches (22.00 mm) in diameter with a 1.5-inch length of cut and a 3.75-inch overall length. It features 2 spiral flutes with a 30-degree helix angle, a right-hand cut, and a right-hand flute direction. The bright, uncoated finish makes it straightforward to inspect for wear. Machinists and tool-and-die professionals install this type of end mill on vertical mills, CNC machining centers, and manual knee mills.

This end mill is suited for slotting, profiling, and peripheral milling in steel, stainless steel, cast iron, and high-temperature alloys. The centercutting geometry allows plunge entry directly into the workpiece, which adds flexibility to tool paths. The 0.75-inch shank diameter fits standard R8, CAT, BT, and ER collet toolholding systems common in job shop and production environments. It ships as a single-end tool in a quantity of one per package, making it practical for replacement or first-time setup needs.

Key Features

• M42 cobalt construction resists heat buildup when cutting steel and high-temp alloys
• Centercutting geometry allows direct plunge entry without a pilot hole
• 30-degree helix angle on spiral flutes promotes chip evacuation and smooth cutting action
• Bright uncoated finish suitable for use with cutting fluids and easy wear inspection
• Right-hand cut and right-hand flute direction for standard spindle rotation
• Single-end configuration with regular-length body for general-purpose machining tasks

Compatibility

Designed for use in standard 0.75-inch toolholding systems on vertical mills and CNC machining centers. Rated for primary workpiece materials including steel (P), stainless steel (M), cast iron (K), and high-temperature alloys (S) per ISO material classification codes.

Installation Notes

A licensed machinist or qualified tool-room technician should install and set this end mill. Power down and lock out the machine spindle before inserting or removing the tool from the holder. Verify tool runout with a dial indicator after seating the shank in the collet or holder before beginning a cut. Do not exceed the manufacturer-rated depth of cut for the material being machined, and ensure adequate cutting fluid flow when machining stainless steel or high-temp alloys to prevent work hardening.