Accupro 12182452 Corner Radius End Mill 1/4 in 4 Flute Carbide

Product Description

The ACCUPRO 12182452 is a solid carbide corner radius end mill designed for precision milling operations in metal cutting and machining applications. It features a 1/4 inch mill diameter, a 3/4 inch length of cut, and a 0.01 inch corner radius that reduces stress concentrations at the base of milled features. With 4 right-hand spiral flutes and a 40-degree helix angle, this tool supports efficient chip evacuation and smooth surface finishes. The single-end, centercutting design allows it to plunge directly into workpiece material. Overall length is 2-1/2 inches with a 1/4 inch shank diameter. Machining professionals and CNC operators use this end mill for general-purpose and finish milling work.

This end mill is suited for use in CNC machining centers and manual milling machines operating on ferrous and non-ferrous materials. The micrograin solid carbide construction supports higher surface speeds and longer tool life compared to high-speed steel alternatives. The bright uncoated finish makes it appropriate for applications where coating buildup or heat transfer is a concern, such as aluminum and certain non-ferrous alloys. It is a single-end tool, so once the cutting end is worn, the tool is replaced rather than flipped.

Key Features

• 0.01 inch corner radius reduces corner chipping and stress risers in milled slots and pockets
• 4 right-hand spiral flutes with 40-degree helix angle for efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece material
• Micrograin solid carbide substrate supports elevated cutting speeds and extended tool life
• Bright uncoated finish suitable for aluminum and non-ferrous milling applications
• Tight mill diameter tolerance of +0.000000 to -0.002500 inch for precise fitment and runout control

Compatibility

Designed as a standard-shank replacement or new-install corner radius end mill compatible with CNC machining centers and manual mills accepting a 1/4 inch straight shank toolholder or collet.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the collet or toolholder is clean and free of chips before seating the 1/4 inch shank. Verify runout with a dial indicator after tightening to confirm the tool is seated within acceptable limits. Follow the machine manufacturer guidelines and applicable shop-floor safety standards when setting cutting parameters.