Accupro 12181316 Square End Mill 0.1969 in 2 Flute Altin

Product Description

The ACCUPRO 12181316 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 0.1969-inch (5.00 mm) mill diameter and a 0.6299-inch (16.00 mm) length of cut, this tool is engineered for tight-tolerance work in ferrous and non-ferrous metals. The AlTiN (aluminum titanium nitride) finish increases surface hardness and heat resistance, extending tool life in high-speed cutting environments. Two spiral flutes with a 40-degree helix angle promote efficient chip evacuation and reduce cutting forces. Micrograin carbide construction supports rigidity at small diameters. This end mill is installed and used by CNC machinists and toolroom professionals.

This end mill is suited for slot milling, profiling, and plunge cutting in a variety of materials including steel, stainless steel, cast iron, and hardened alloys. The centercutting geometry allows direct plunge entry without a pre-drilled pilot hole. The 6.00 mm shank diameter and 63.00 mm overall length make it compatible with standard collet chucks and end mill holders used on vertical machining centers, CNC mills, and manual knee mills in both production and prototype environments.

Key Features

• 0.1969-inch (5.00 mm) mill diameter with micrograin solid carbide construction for rigidity at small diameters
• AlTiN coating provides elevated heat resistance and extended tool life in ferrous cutting applications
• 40-degree helix angle with spiral flute geometry promotes smooth chip evacuation and reduced chatter
• Centercutting design allows direct plunge milling without a pre-drilled entry point
• Right-hand cut, right-hand flute configuration compatible with standard spindle rotation
• Mill diameter tolerance of +0.000 / -0.002 inches supports close-tolerance workpiece requirements

Compatibility

Designed as an OEM-style replacement or standard tooling addition for CNC machining centers and manual mills using collet or end mill holder tooling with a 6.00 mm shank bore.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom operator. Ensure the spindle is fully stopped and locked out before inserting or removing the end mill from the holder. Verify collet bore size matches the 6.00 mm shank diameter before tightening. Follow machine tool manufacturer torque specifications for collet nuts and confirm runout with a dial indicator before beginning a production cut.