Promax US362146 Square End Mill 1/2 in 3 Flute Carbide

Product Description

The PROMAX US362146 is a solid carbide square end mill designed for high-performance milling in demanding metal cutting applications. With a 0.5000 inch mill diameter, 1.25 inch length of cut, and a 3-inch overall length, this tool delivers precise material removal on CNC machining centers and manual mills. The 46/48 degree variable helix angle reduces chatter and harmonics during the cut, while the ZrN (zirconium nitride) coating improves surface hardness and heat resistance. Three flutes provide a balance between chip evacuation and cutting edge strength. The micrograin carbide substrate supports edge integrity under high-feed conditions. This tool is intended for installation and use by machinists and CNC operators.

The US362146 is suited for side milling, slotting, and profiling operations in ferrous and non-ferrous materials. The variable helix and variable index geometry make it particularly effective for reducing vibration in long-reach or thin-wall workpiece scenarios. It is a single-end tool with a straight cylindrical shank, making it compatible with standard ER collets, milling chucks, and shrink-fit holders. The standard length classification fits typical setup requirements without requiring extended tooling accommodations. It belongs to the PROMAX Series US362 line of high-performance end mills.

Key Features

• 46/48 degree variable helix angle reduces chatter and cutting harmonics
• Variable index flute spacing further dampens vibration during aggressive cuts
• ZrN coating provides enhanced surface hardness and thermal resistance
• Micrograin solid carbide substrate maintains edge sharpness under load
• Centercutting design allows direct plunge entry into workpiece
• Right-hand cut and right-hand spiral flute configuration for standard milling operations

Compatibility

Designed as a direct-use solid carbide square end mill for CNC machining centers and manual mills using standard straight-cylindrical shank toolholders. No specific OEM model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet or chuck runout is within acceptable tolerance before cutting, as excessive runout accelerates edge wear on carbide tooling. Follow the toolholder manufacturer torque specifications when securing the collet nut or chuck.