Accupro 12183468 Corner Radius End Mill 3/16 in 4 Flute

Product Description

The ACCUPRO 12183468 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hardened materials. It features a 3/16 inch diameter with a 0.03 inch corner radius, reducing stress concentrations at part corners and extending tool life in demanding cuts. The 4-flute, right-hand spiral geometry with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. An AlTiN coating provides high-temperature oxidation resistance, making this end mill well suited for dry or high-speed machining. Machinists and toolmakers in production and job shop environments install this tool in CNC machining centers and knee mills.

This end mill is built for long-reach applications with a 1 inch length of cut and a 4 inch overall length, giving it extended reach capability for deep pocket and slot milling. The single-end, center-cutting design allows direct plunging into material. The 3/16 inch shank diameter matches the cutting diameter for straightforward collet or end mill holder setup. It is used in aerospace, automotive, die-and-mold, and general precision machining where tight corner radii and consistent tolerances are required.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance in hard materials
• AlTiN coating supports high-speed and dry machining by resisting heat-related wear
• 0.03 inch corner radius reduces chipping at part edges and stress at tool corners
• 40-degree helix angle with right-hand spiral promotes chip flow and reduces chatter
• Center-cutting geometry enables direct plunge entry without pre-drilling
• Long-reach 4 inch overall length with 1 inch length of cut for deep pocket access

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for CNC machining centers and manual mills accepting a 3/16 inch diameter end mill holder or collet.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Secure the shank fully into a precision collet or end mill holder and torque to the holder manufacturer's specification. Verify runout with a dial indicator before beginning a cut. Always disengage spindle power and bring the machine to a full stop before changing or inspecting tooling.