Accupro 12176644 Corner Radius End Mill 0.1563 in 3 Flute

Product Description

The ACCUPRO 12176644 is a solid carbide corner radius end mill designed for precision milling in demanding machining environments. With a 0.1563-inch cutting diameter and a 0.01-inch corner radius, it produces clean, radiused edges that reduce stress concentrations in finished parts. The 3-flute configuration with a 35-degree helix angle balances chip evacuation with surface finish quality. AlTiN coating provides thermal resistance and hardness for extended tool life in ferrous and hardened materials. The micrograin carbide substrate supports rigidity and edge retention at elevated cutting speeds. Machinists and CNC operators in job shops and production facilities rely on this geometry for precise finishing and semi-finishing passes in tight tolerances.

This end mill suits CNC milling applications requiring a small-diameter, corner-radius profile with controlled runout. The 0.8661-inch length of cut accommodates moderate-depth slotting and profiling operations. The 3/16-inch shank diameter fits standard collet chucks and ER-style toolholders commonly found on vertical machining centers and CNC routers. Right-hand cutting and right-hand flute direction make it compatible with conventional spindle rotation on standard 3-axis and multi-axis CNC machines. Single-end, centercutting design allows plunge entry as well as peripheral cuts.

Key Features

• 0.01-inch corner radius reduces edge chipping and part stress concentrations
• AlTiN coating for elevated temperature resistance and extended tool life in ferrous materials
• Micrograin solid carbide substrate for rigidity and precise edge retention
• 35-degree helix angle promotes smooth chip flow and improved surface finish
• Centercutting geometry allows direct plunge entry without pre-drilling
• Single-end construction with right-hand cut and right-hand spiral flutes

Compatibility

Designed for use in standard ER collet chucks, end mill holders, and shrink-fit toolholders accepting a 3/16-inch shank diameter. Suitable for vertical machining centers and CNC routers running right-hand spindle rotation.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Seat the shank fully and evenly in the collet or toolholder before tightening to manufacturer torque specifications for the holder type. Verify runout with a dial indicator after clamping and before initiating a cutting cycle to protect both the tool and the workpiece.