Accupro 12184501 Ball End Mill 0.25 in 3 Flute Solid Carbide

Product Description

The ACCUPRO 12184501 is a single-end ball end mill designed for precision milling operations in ferrous and hard-to-machine materials. Built from micrograin solid carbide with an AlTiN coating, it handles elevated cutting temperatures and abrasive workpieces where high-speed steel tooling falls short. The mill measures 0.25 inches in diameter with a 1 inch length of cut, a 4 inch overall length, and a 0.25 inch shank diameter. The 40-degree right-hand helix promotes efficient chip evacuation and smooth cutting action. Three flutes provide a balance between chip clearance and surface finish quality in finishing and semi-finishing passes.

This end mill is suited for CNC machining centers and manual mills performing profiling, slotting, and contouring operations. The long-reach 4 inch overall length makes it appropriate for applications requiring access to deeper features or stepped cavities. The AlTiN coating extends tool life in dry or minimal-lubrication cutting environments, particularly in hardened steels, stainless, cast iron, and titanium alloys. It is typically installed and operated by machinists and CNC programmers working in job shops, aerospace fabrication, and general metalworking environments.

Key Features

• Micrograin solid carbide substrate for wear resistance and edge retention
• AlTiN coating for high-heat performance and extended tool life in hard materials
• 40-degree right-hand helix for efficient chip evacuation
• 3-flute geometry balances chip clearance with surface finish quality
• Single-end ball profile for profiling, contouring, and 3D surface work
• Long overall length of 4 inches for deep-feature access

Compatibility

Designed as a standard 0.25 inch shank ball end mill compatible with collet chucks, end mill holders, and shrink-fit tooling systems accepting 1/4 inch straight shanks on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the spindle is fully stopped and locked out before loading or removing tooling. Seat the shank fully into the holder to the minimum insertion depth recommended for the holder type, and verify runout with a dial indicator before cutting. Follow machine manufacturer guidelines and applicable shop safety standards when setting speeds and feeds for carbide end mills.