Accupro 12181308 Corner Radius End Mill 3/16 in 2 Flute

Product Description

The ACCUPRO 12181308 is a solid carbide corner radius end mill designed for precision milling in metalworking and machining applications. It features a 3/16 inch (0.1875 inch) mill diameter with a 0.03 inch corner radius, producing a controlled blend between the end face and the flute cutting edge. With a 40-degree helix angle and AlTiN coating, it handles elevated cutting speeds while maintaining edge integrity on ferrous and non-ferrous workpiece materials. The micrograin carbide substrate contributes to rigidity and wear resistance. This tool is suited for CNC machining centers and manual mills where close-tolerance profiling, slotting, or pocket milling is required.

This end mill is used in job shops, tool rooms, and production machining environments. The centercutting geometry allows both plunge and ramp entry, making it practical for die and mold work, contour profiling, and multi-axis finishing passes. The 5/8 inch length of cut and 2 inch overall length fit short-reach setups where rigidity is a priority. The 3/16 inch shank diameter matches the mill diameter, suiting it for standard collets in that size range.

Key Features

• Solid micrograin carbide construction for rigidity and extended tool life
• AlTiN coating supports elevated cutting temperatures and reduces built-up edge
• 0.03 inch corner radius blends end and side cutting edges to reduce stress concentration in machined corners
• 40-degree helix angle promotes smooth chip evacuation and reduces cutting forces
• Centercutting design permits plunge, ramp, and helical entry
• Right-hand cut and right-hand flute spiral for conventional CNC spindle use

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in standard 3/16 inch collets on CNC machining centers, vertical mills, and compatible toolholding systems.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully in a clean, undamaged collet or toolholder and torque the retention nut to the toolholder specification. Verify runout with an indicator before beginning cuts, as excessive runout accelerates corner radius wear and reduces dimensional accuracy.