Promax 109-06446 Square End Mill 1 in 3 Flute Solid Carbide

Product Description

The PROMAX 109-06446 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. Built from micrograin carbide and coated with a ZrN (zirconium nitride) finish, this tool delivers hardness and wear resistance across a range of materials. It features a 1 inch cutting diameter, a 3-3/8 inch length of cut, and a 6 inch overall length. The 40-degree spiral flute geometry promotes efficient chip evacuation and smooth cutting action. This tool is installed and operated by machinists and CNC programmers in production and job-shop settings.

The 109-06446 is suited for end milling, slotting, and profiling operations in ferrous and non-ferrous metals. Its centercutting design allows plunge entry directly into the workpiece. The right-hand cut and right-hand flute configuration is standard for conventional CNC machining centers and manual mills. The Series 109 designation places it within PROMAX's line of high-performance solid carbide end mills intended for general-purpose and high-speed milling applications.

Key Features

• 1 inch cutting diameter with a mill diameter tolerance of +0.000 / -0.002 inches for consistent sizing
• Micrograin solid carbide construction for rigidity and extended tool life
• ZrN coating provides heat and wear resistance without adding significant edge buildup
• 40-degree helix angle with spiral flute geometry for efficient chip evacuation
• Centercutting design enables direct plunge entry into the workpiece
• Right-hand cut and right-hand flute for standard CNC and manual mill compatibility

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for standard 1 inch collet or end mill holders on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Secure the 1 inch straight shank in a properly sized end mill holder or collet chuck, torquing to the machine tool manufacturer's specified clamping values. Verify spindle direction is set to right-hand rotation before engaging the cut. Inspect the tool shank and holder bore for runout before operation.