Accupro 315912 Ball End Mill 5/8 in 3 Flute Solid Carbide

Product Description

The ACCUPRO 315912 is a single-end ball end mill designed for contour milling, profiling, and 3D surface work in machining centers and CNC mills. Built from micrograin solid carbide, it carries a ZrN (zirconium nitride) coating that reduces friction and extends tool life in non-ferrous and hardened materials. The 5/8 inch cutter diameter is paired with a 37-degree right-hand spiral helix and three flutes, balancing chip evacuation with surface finish quality. A 3-3/8 inch reach length makes it well suited for deeper cavity and pocket work where standard-length tooling falls short.

This end mill fits production and job-shop environments where extended-reach capability is required without sacrificing rigidity. The 5/8 inch shank diameter matches the cutter diameter for direct collet or end mill holder mounting. With a 3/4 inch length of cut and 6 inch overall length, this tool is commonly used by machinists working aluminum, brass, copper, and similar non-ferrous alloys where ZrN coating performance is maximized. It installs in standard ER, Weldon, or shrink-fit toolholders accepting a 5/8 inch shank.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• ZrN coating reduces built-up edge and extends tool life in non-ferrous applications
• 37-degree right-hand helix promotes smooth chip flow and reduced cutting forces
• 3-3/8 inch reach length supports extended-reach cavity and pocket milling
• Single-end ball profile for contour, ramp, and 3D surface operations
• Tight diameter tolerances: +0.000 / -0.002 inches on cutter, +0.0001 / -0.0004 inches on shank

Compatibility

Designed for use in CNC machining centers and manual mills with toolholders accepting a 5/8 inch shank diameter, including ER collet chucks, Weldon-style end mill holders, and shrink-fit systems.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is powered down or in an e-stop state before changing tooling. Seat the shank fully into the holder to the recommended gauge-line depth and torque the retention mechanism per the toolholder manufacturer specifications. Inspect the cutting edges for chips or damage before each use, as carbide tooling is brittle and should not be dropped or impacted.