Accupro 12182729 Corner Radius End Mill 1/8 in 4 Flute

Product Description

The ACCUPRO 12182729 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 1/8 inch diameter with a 0.045 inch corner radius and a TiCN (Titanium Carbonitride) coating that increases surface hardness and reduces friction during cutting. The micrograin carbide substrate supports sharper cutting edges and extended tool life compared to standard carbide grades. With 4 right-hand spiral flutes and a centercutting geometry, this end mill handles slotting, profiling, and plunge operations. It is installed and used by machinists and tool-and-die professionals on CNC mills and manual milling machines.

This end mill is suited for applications requiring tight corner radii in hardened and abrasive materials, including alloy steels, stainless steels, cast iron, and non-ferrous metals. The TiCN coating performs well in dry or minimal-lubrication cutting environments. The stub length of cut at 1/4 inch provides rigidity for high-precision finishing passes where deflection must be minimized. It is a single-end tool and is typically used in high-speed CNC profiling, die work, and mold machining where corner geometry and surface finish are critical requirements.

Key Features

• Solid micrograin carbide construction for sharp edges and extended tool life
• TiCN coating improves wear resistance and reduces heat buildup at the cutting edge
• 0.045 inch corner radius reduces stress concentrations and improves corner finish quality
• 4 right-hand spiral flutes with centercutting capability for slotting and plunge milling
• Stub length of cut (1/4 inch) maximizes rigidity and minimizes deflection
• Right-hand cutting direction compatible with standard CNC and manual milling setups

Compatibility

Designed as an OEM-style solid carbide end mill for use in standard 1/8 inch collet chucks, end mill holders, or shrink-fit toolholders on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists following shop safety protocols. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the 1/8 inch shank fully into the collet or toolholder and torque the retention mechanism to the toolholder specification before initiating a cut. Verify runout with a dial indicator before beginning finish passes, as excessive runout will accelerate edge wear on small-diameter carbide tools.