Value Collection 27793 Ball End Mill 5/16 in 2 Flute Hss

Product Description

The VALUE COLLECTION 27793 is a single-end ball end mill designed for milling contoured surfaces, slots, and three-dimensional profiles in a wide range of workpiece materials. It measures 0.3125 inches in diameter with a 0.75 inch length of cut and an overall length of 2.5 inches. Constructed from M7 high speed steel with a bright, uncoated finish, it runs with a 30-degree right-hand spiral helix and two flutes. The 0.375 inch shank seats directly into standard collet chucks and end mill holders. This tool is suited for manual mills, knee mills, and CNC machining centers operating at speeds appropriate for HSS tooling.

This end mill fits general-purpose milling applications in job shops, maintenance facilities, and production environments. The regular-length geometry and 0.3125 inch diameter make it practical for finishing passes on small pockets, ramps, and curved surfaces in steel, aluminum, brass, and similar materials. It is a single-end tool, so the full cutting life is concentrated at one end. Machinists and toolroom technicians are the primary users. It is well suited for work requiring a compact, light-duty ball profile cutter where a coated carbide tool is not warranted by the application or material.

Key Features

• 0.3125 inch (5/16 inch) ball nose diameter for contour and profile milling
• M7 high speed steel construction provides toughness and resistance to chipping
• 30-degree right-hand helix promotes chip evacuation and smooth cutting action
• Two-flute design allows adequate chip clearance in slotting and plunge entry
• Bright, uncoated finish suitable for regrinding and general-purpose use
• Regular-length geometry for standard reach applications without extended-reach deflection risk

Compatibility

Designed as a standard replacement or stock ball end mill for use in any milling machine or machining center accepting a 0.375 inch shank end mill holder or collet.

Installation Notes

Installation and tool changes must be performed with the machine fully powered down and the spindle completely stopped. Seat the 0.375 inch shank fully into the holder or collet before torquing the drawbar or collet nut to the machine manufacturer's specification. Inspect the shank and collet bore for chips or burrs before mounting. Follow applicable OSHA machine guarding requirements and your facility's lockout/tagout procedure before any tooling change.