Value Collection 934-000-099 Cobalt Square End Mill

Product Description

The VALUE COLLECTION 934-000-099 is a cobalt square end mill designed for precision milling in ferrous and hard-to-machine materials. Built from M42 cobalt high-speed steel, this double-end tool offers a 1/16 inch (0.0625 inch) cutting diameter and a 7/32 inch (0.2188 inch) length of cut. The four-flute, right-hand spiral configuration with a 40-degree helix angle provides efficient chip evacuation and a smooth finish. Center-cutting capability allows plunge entry. The bright, uncoated finish is suited for applications where coating is not required or where regrinding is anticipated. Machinists and tool-and-die professionals working with manual and CNC milling equipment will find this Series 551 tool appropriate for tight-tolerance work.

This end mill is suited for use on knee mills, vertical machining centers, and CNC milling machines where small-diameter precision cutting is required. The long-length classification and 3/16 inch straight shank make it compatible with standard collet chucks and end mill holders in that shank size. The double-end design extends tool life by providing a second cutting end when the first is worn. Typical applications include slotting, profiling, and light-duty pocket milling in tool steel, stainless steel, and other hard alloys.

Key Features

• M42 cobalt steel construction for heat and wear resistance in hard materials
• Double-end design provides two usable cutting ends per tool
• Center-cutting geometry allows direct plunge milling
• 40-degree helix angle promotes efficient chip evacuation and surface finish
• Bright/uncoated finish suitable for regrinding or uncoated-required applications
• Four right-hand flutes with spiral flute type for balanced cutting performance

Compatibility

Designed for use with standard collet chucks and end mill holders accepting a 3/16 inch straight shank diameter, compatible with manual and CNC milling equipment in that toolholder size.

Installation Notes

Installation is performed by qualified machinists familiar with milling toolholding systems. Ensure the spindle is fully powered down and locked before inserting or removing the tool from the collet or end mill holder. Verify collet size matches the 3/16 inch shank before tightening. Inspect both cutting ends for chipping or wear before use, and follow applicable shop safety practices for rotating cutting tools.