Accupro 12181346 Corner Radius End Mill 1/4 in 2 Flute

Product Description

The ACCUPRO 12181346 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 1/4 inch diameter cutting profile with a 0.01 inch corner radius, reducing stress concentrations at the tool tip and extending tool life in demanding cuts. The 2-flute geometry and right-hand spiral flute design support efficient chip evacuation. An AlTiN coating provides thermal resistance and hardness at elevated cutting temperatures, making this end mill well-suited for ferrous metals and hardened alloys. Machinists and CNC operators install this tool in standard 1/4 inch collet or end mill holders.

This end mill is intended for use in CNC machining centers and manual mills where a corner radius profile is required to produce blended fillets, reduce chipping on workpiece corners, or improve surface finish in pocketing and contouring operations. The centercutting design allows plunge entry directly into the workpiece. It is applicable to production and job-shop environments handling steel, stainless steel, cast iron, and similar materials where AlTiN coatings perform best.

Key Features

• 1/4 inch cutting diameter with 0.01 inch corner radius for blended fillet work
• AlTiN coating for high-temperature wear resistance in ferrous and hardened materials
• Solid micrograin carbide construction for rigidity and edge retention
• 2-flute right-hand spiral geometry promotes efficient chip evacuation
• Centercutting capability allows direct plunge entry into workpieces
• Single-end design with 3/4 inch length of cut and 2-1/2 inch overall length

Compatibility

Designed for use in standard 1/4 inch collet chucks and end mill holders on CNC machining centers and manual milling machines requiring a corner radius end mill profile.

Installation Notes

Installation is performed by a machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the 1/4 inch shank fully into the collet or holder and torque the retention nut per the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning production cuts, as shank diameter tolerance is -0.0001 to -0.0004 inches.