Accupro 313666 Ball End Mill 1/2 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 313666 is a single-end ball end mill designed for contouring, profiling, and 3D machining operations in metal and composite workpieces. Built from micrograin solid carbide, it delivers the rigidity and edge retention needed for demanding milling applications. The 1/2 inch cutting diameter pairs with a 1-1/4 inch length of cut and a 45-degree helix angle, promoting efficient chip evacuation and smooth surface finishes. The bright, uncoated finish suits a range of general-purpose materials. Machinists and CNC operators in job shops, tool rooms, and production environments are the primary users of this tool.

This end mill is suited for CNC machining centers and manual knee mills running right-hand spindle rotation. The 1/2 inch shank diameter fits standard ER collet chucks, end mill holders, and shrink-fit tooling commonly found in production and prototype shops. The 3 inch overall length keeps overhang manageable for stable cuts in typical cavity and contour work. It is appropriate for slotting, ramping, and helical interpolation where a ball nose profile is required.

Key Features

• Micrograin solid carbide construction for superior hardness and edge retention
• 45-degree right-hand spiral helix for efficient chip flow and reduced cutting forces
• 1/2 inch cutting diameter with a tight mill diameter tolerance of +0.000 / -0.002 inches
• 1-1/4 inch length of cut accommodates moderate-depth cavity and contour passes
• Bright, uncoated finish suitable for general-purpose milling applications
• Single-end design with right-hand cutting direction for standard CNC spindle use

Compatibility

Designed as a standard 1/2 inch shank ball end mill compatible with ER collet systems, end mill holders, and shrink-fit toolholders accepting a 1/2 inch shank diameter on CNC machining centers and manual milling machines with right-hand spindle rotation.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an e-stop or powered-down state before loading or changing tooling. Seat the shank to the full recommended engagement depth in the toolholder and torque retention screws or collet nuts to the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a production cut, as excessive runout accelerates carbide edge wear.