Promax 120-00812 Roughing Finishing End Mill 1/8 in 4 Flute

Product Description

The PROMAX 120-00812 is a solid carbide roughing and finishing end mill designed for aggressive material removal followed by a quality finish in a single tool. Measuring 0.125 inches in diameter with a 0.01 inch corner radius, this 4-flute end mill features a 40-degree helix angle and a TiCN (Titanium Carbonitride) coating that extends tool life by reducing friction and heat buildup. The corner radius end geometry helps distribute cutting forces across the edge, reducing chipping and extending service intervals in demanding milling operations. This tool is part of the Series 120 lineup and suits machinists working in general metalworking, mold making, and precision part production.

This end mill is built for use in CNC machining centers and manual mills where fine features and tight tolerances are required at small diameters. The 0.5 inch length of cut and 1.5 inch overall length make it well suited for shallow-to-moderate depth passes in ferrous and non-ferrous materials. The right-hand flute direction and right-hand cutting orientation are standard for conventional milling setups. Single-end configuration means the full shank length is available for secure tool holding.

Key Features

• Solid carbide construction for rigidity and wear resistance at small diameters
• TiCN coating reduces heat and friction, extending tool life in ferrous materials
• 0.01 inch corner radius reduces edge chipping and improves surface finish
• 40-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• 4-flute design balances material removal rate with chip clearance
• Right-hand cut, right-hand flute, single-end configuration for standard CNC setups

Compatibility

Designed as a direct-fit replacement or addition for standard 1/8 inch collet or end mill holders in CNC machining centers and conventional milling machines requiring a corner radius end mill at this diameter.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the machine in a fully stopped and locked-out state. Ensure the tool holder collet is clean and free of debris before seating the 0.125 inch shank. Do not exceed the recommended depth of cut for the diameter and material combination. Verify runout with a dial indicator after tightening to maintain tolerance and extend tool life.