Accupro 12276917 Ball End Mill 0.024 in 4 Flute Carbide

Product Description

The ACCUPRO 12276917 is a miniature solid carbide ball end mill designed for precision milling of small-feature geometry in ferrous and non-ferrous materials. The 0.024-inch cutting diameter and 0.072-inch length of cut make this tool well-suited for fine-detail work where dimensional accuracy is critical. Micrograin carbide construction provides the hardness and edge retention required for tight-tolerance applications. The bright, uncoated finish is standard for this class of miniature tooling. Four flutes and a 30-degree right-hand helix promote chip evacuation and surface finish quality in shallow-depth passes.

This end mill fits into high-speed CNC machining centers and manual mills used in tool-and-die, mold-making, medical device machining, and precision parts production. The 1/8-inch shank diameter is compatible with standard collet systems commonly found in vertical machining centers. The single-end configuration and 1.5-inch overall length allow use in close-clearance setups typical in miniature mold cavity work and micro-feature engraving.

Key Features

• 0.024-inch ball nose cutting diameter for fine-detail and micro-feature milling
• Micrograin solid carbide substrate for hardness and edge retention
• 4-flute, right-hand spiral design promotes chip flow and surface finish
• 30-degree helix angle balances cutting force and chip evacuation
• Bright uncoated finish suitable for non-ferrous and general-purpose applications
• Miniature series with 1/8-inch shank for standard collet compatibility

Compatibility

Designed as an OEM-style replacement and standard miniature ball end mill for CNC vertical machining centers and manual mills equipped with 1/8-inch collet systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the 1/8-inch shank fully into the collet and torque the collet nut according to the collet manufacturer specifications. At this diameter, tool runout is critical — verify runout with a dial indicator before beginning a cut to avoid premature tool breakage.