Promax US007118 Corner Radius End Mill 3/4 in 4 Flute

Product Description

The PROMAX US007118 is a solid carbide corner radius end mill designed for demanding metal removal in roughing and finishing operations. It features a 3/4 inch (0.7500 inch) mill diameter, a 0.0200 inch corner radius, and a PowerLayer coating applied over a micrograin carbide substrate. With four flutes, a variable helix, and a variable index geometry, it reduces chatter and improves chip evacuation across a wide range of cutting conditions. The short flute length of 1.2500 inches and 3 inch overall length make it well suited for rigid setups where tool deflection must be minimized. It is installed by machinists and CNC operators working in production and job shop environments.

The US007118 is built for cutting steel, stainless steel, cast iron, superalloys, titanium, and non-ferrous metals. It runs in standard toolholders with a straight-cylindrical 1/2 inch shank and is configured for right-hand cutting with right-hand flute direction. The coarse pitch and spiral flute geometry support both aggressive material removal and finishing passes without a tool change. It is a single-end design, so once the cutting end is worn, the tool is replaced rather than flipped.

Key Features

• 0.0200 inch corner radius protects the cutting edge and improves surface finish at part corners
• Variable helix and variable index geometry reduce harmonic vibration during cuts
• PowerLayer (PROMAX proprietary) coating extends tool life across ferrous and non-ferrous workpiece materials
• Centercutting design allows plunge entry without a pre-drilled hole
• Micrograin solid carbide substrate provides hardness and wear resistance at elevated cutting temperatures
• Straight-cylindrical 1/2 inch shank fits standard toolholders without adapters

Compatibility

Designed for use with standard toolholders accepting a 1/2 inch straight-cylindrical shank. Suitable for CNC machining centers and manual mills running steel, stainless steel, cast iron, superalloys, titanium, and non-ferrous metals. Part of the PROMAX US007 series.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Power down and de-energize the machine spindle before inserting or removing the tool from the toolholder. Verify shank runout with a dial indicator after clamping to confirm the tool is seated within tolerance. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and depth of cut being used.