Accupro 12184312 Ball End Mill 0.375 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 12184312 is a single-end ball end mill designed for contour milling, profiling, and 3D surface work in machining applications. Built from micrograin solid carbide and coated with AlTiN, it handles hard materials and elevated cutting temperatures where high-speed steel tooling falls short. The 0.375-inch diameter cutting head pairs with a 1.5-inch length of cut and a 40-degree helix angle, promoting smooth chip evacuation and reduced chatter. The extra-long 6-inch overall length provides reach into deep cavities and tall workpieces without requiring extended-reach adapters. Two right-hand spiral flutes run in a right-hand cutting direction.

This end mill is suited for CNC machining centers and manual mills handling ferrous and non-ferrous metals, hardened steels, titanium, and similar difficult-to-cut materials. The extra-long configuration makes it a practical choice for mold and die work, deep pocket roughing and finishing, and aerospace or medical component machining where depth access is critical. The 3/8-inch shank diameter fits standard ER collets and end mill holders commonly found in production shop environments.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance in hard-material applications
• AlTiN coating extends tool life at elevated cutting temperatures and reduces built-up edge
• 40-degree helix angle promotes efficient chip evacuation and smooth surface finish
• Extra-long 6-inch overall length provides deep-reach capability for mold, die, and cavity work
• Single-end design with right-hand cut and right-hand spiral flutes
• No variable index — consistent flute spacing for predictable cutting dynamics

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for CNC machining centers and manual mills accepting a 3/8-inch straight shank via ER collet or end mill holder.

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 shank fully in the collet or holder and torque the retention nut to the tool holder manufacturer's specification. Verify runout with a dial indicator before initiating a cutting program, as excessive runout on a carbide end mill will accelerate edge chipping.