Accupro 12184770 Ball End Mill 0.2188 in 4 Flute Ticn

Product Description

The ACCUPRO 12184770 is a solid carbide ball end mill designed for precision milling operations in metal cutting and machining applications. Built from micrograin carbide stock, it delivers rigidity and edge retention that general-purpose tooling cannot match at this diameter. The 0.2188-inch (7/32-inch) cutting diameter, 4-flute geometry, and 40-degree helix angle combine to support aggressive material removal while maintaining finish quality. A TiCN (titanium carbonitride) coating reduces friction and extends tool life across ferrous and non-ferrous materials. This is a single-end tool with a right-hand cut and right-hand spiral flute configuration.

This end mill is suited for CNC machining centers and manual mills where a stub-length, small-diameter ball nose profile is required. Typical applications include contouring, profiling, and 3D surface work in tool steel, alloy steel, cast iron, and hardened materials where TiCN coating performance is appropriate. The 1/4-inch shank diameter makes it compatible with standard collet and end mill holder systems found across most machining setups. It is sold as a single-piece unit and is appropriate for job shop, production, and maintenance machining environments.

Key Features

• Micrograin solid carbide construction for superior hardness and edge retention at small diameters
• TiCN coating reduces heat buildup and extends tool life in ferrous and hardened materials
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• 4-flute design balances material removal rate with surface finish quality
• Stub-length profile (0.375-inch LOC) improves rigidity and reduces deflection in tight pockets
• Right-hand cut, right-hand spiral — compatible with standard CNC spindle configurations

Compatibility

Designed as a direct-fit replacement or standard tooling option for CNC machining centers and manual knee mills accepting a 1/4-inch straight shank via collet, end mill holder, or shrink-fit tooling systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully powered down and locked before inserting or removing any end mill. Seat the shank to the full recommended engagement depth in the holder — never extend shank exposure beyond what the application requires, as deflection risk increases significantly at small diameters. Follow the tooling manufacturer and machine builder recommendations for runout inspection after tool changes on precision finishing work.