Widia 6144246 Square End Mill 1/4 in 3 Flute Solid Carbide

Product Description

The WIDIA 6144246 is a 3-flute solid carbide square end mill designed for precision milling in metalworking applications. With a 1/4 inch cutting diameter and a 1 inch length of cut, it delivers sharp, accurate profiles in steel, stainless steel, cast iron, and non-ferrous metals. The 30-degree right-hand helical flute geometry promotes efficient chip evacuation and reduced cutting forces. The bright/uncoated carbide construction makes it well suited for applications where coating is not required or where re-grinding is planned. Licensed machinists, CNC operators, and tool-and-die professionals will find this end mill a direct fit for standard milling centers and machining cells.

This end mill is built for general-purpose slot milling, profiling, and peripheral cutting across a range of workpiece materials including steel (P-code), stainless steel (M-code), cast iron (K-code), and non-ferrous metals (N-code). Its regular-length geometry and straight cylindrical shank suit it for conventional vertical machining center setups and manual knee mills where a 1/4 inch collet or end mill holder is used. The Series I3S designation places it within a consistent WIDIA product family for straightforward replacement ordering.

Key Features

• 1/4 inch cutting diameter with 1 inch length of cut for precise slot and profile work
• 3 helical flutes with 30-degree helix angle for efficient chip flow and smooth finish
• Solid carbide construction for rigidity and wear resistance in metallic workpieces
• Center-cutting capable, allowing plunge entry into workpiece material
• Right-hand cut and right-hand flute direction for standard spindle rotation
• Bright/uncoated finish suitable for re-grinding or applications that do not require a coating

Compatibility

Designed as an OEM-style replacement end mill compatible with 1/4 inch collet chucks, end mill holders, and shrink-fit tooling used on standard CNC vertical machining centers and manual mills. Rated for use in steel, stainless steel, cast iron, and non-ferrous metal workpieces per material codes P, M, K, and N.

Installation Notes

Installation of this end mill should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout/tagout state before changing tooling. Seat the straight cylindrical shank fully into the collet or holder and torque the retention mechanism per the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a cut, and confirm that feed rate, depth of cut, and spindle speed are appropriate for the workpiece material and machine capability.