Accupro 12183452 Corner Radius End Mill 3/16 in 4 Flute

Product Description

The ACCUPRO 12183452 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. With a 3/16 inch mill diameter and a 0.015 inch corner radius, this single-end tool produces controlled edge breaks and contoured profiles while maintaining tight dimensional tolerances. The 4-flute, right-hand spiral configuration with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. The bright/uncoated finish suits a range of general-purpose milling tasks. Licensed machinists and toolroom technicians working on CNC mills and manual knee mills will find this tool appropriate for finishing passes on steel and other ferrous materials.

This end mill fits standard milling applications in job shops, tool and die operations, and production machining environments. The long-length designation, with a 1 inch length of cut and 4 inch overall length, provides reach for deeper pockets and stepped features. Centercutting capability allows direct plunge entry into workpieces without pre-drilling. The micrograin carbide substrate supports use in harder materials where high-speed steel tooling would wear prematurely.

Key Features

• 3/16 inch mill diameter with matching 3/16 inch shank diameter for direct collet or end mill holder mounting
• 0.015 inch corner radius reduces stress concentration at milled edges and extends part life
• 4 right-hand spiral flutes with 40-degree helix angle for efficient chip evacuation
• Centercutting design allows direct plunge milling without a pilot hole
• Micrograin solid carbide substrate for wear resistance in ferrous and hard materials
• Bright/uncoated finish suitable for general-purpose dry and wet milling operations

Compatibility

Designed as a general-purpose replacement or new-stock corner radius end mill compatible with standard 3/16 inch collets, shrink-fit holders, and end mill adapters used on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Seat the shank fully into the holder to the minimum insertion depth recommended for the holder type, and torque retention screws or collet nuts to the holder manufacturer specification. Verify runout with a dial indicator before beginning a cut, as excessive runout will accelerate corner radius wear and affect dimensional accuracy.