Promax 120-04812 3/4 in 4-flute Corner Radius End Mill Ticn

Product Description

The PROMAX 120-04812 is a solid carbide roughing finishing end mill designed for aggressive material removal combined with a refined surface finish in a single pass. Built to Series 120 specifications, this tool features a 3/4 inch cutting diameter with a 0.03 inch corner radius, four right-hand flutes, and a 40-degree helix angle. The micrograin carbide substrate supports the TiCN coating, which reduces friction and extends tool life in ferrous and non-ferrous applications. It is a single-end, centercutting design, making it suitable for plunge entries and full-depth slotting operations. Licensed machinists and CNC tooling technicians are the primary installers and operators of this tool.

This end mill is suited for use in CNC machining centers and manual milling machines where combined roughing and finishing operations are required. The corner radius geometry reduces chipping at the cutting edge and improves part geometry at floor-to-wall transitions. The Weldon flat shank provides positive drive engagement in side-lock tool holders, making it a reliable choice for high-feed milling of steel, stainless, aluminum, and similar materials in job shop and production environments.

Key Features

• 3/4 inch cutting diameter with 0.03 inch corner radius for edge strength and improved surface finish
• TiCN coating reduces friction and improves wear resistance in ferrous and non-ferrous materials
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Micrograin solid carbide substrate provides rigidity and resistance to thermal deformation
• Weldon flat shank for positive engagement in side-lock holders, minimizing tool pullout
• Centercutting design allows direct plunge entry without a pre-drilled hole

Compatibility

Designed as an OEM-style replacement or direct selection for standard 3/4 inch side-lock and Weldon flat tool holders used in CNC vertical machining centers and manual knee mills.

Installation Notes

Installation and tool changes must be performed with the machine fully powered down and the spindle locked. A calibrated torque wrench should be used when seating the Weldon flat set screw to prevent holder damage without over-tightening. Verify runout with a dial indicator after installation before initiating any cutting cycle. Follow shop safety protocols and applicable OSHA machine guarding standards during all tooling operations.