Promax US007125 Corner Radius End Mill 4 Flute Carbide

Product Description

The PROMAX US007125 is a solid carbide corner radius end mill engineered for demanding metal removal in both roughing and finishing operations. It features a 0.125 inch mill diameter, a 1 inch length of cut, and a 3 inch overall length, mounted on a 0.5 inch straight cylindrical shank. The 0.030 inch corner radius reduces stress concentration at the cutting edge, extending tool life in high-load applications. A variable helix and variable index geometry break up harmonic vibration, minimizing chatter during aggressive cuts. The proprietary PROMAX PowerLayer coating provides thermal and abrasion resistance across a wide range of workpiece materials.

This end mill is designed for use in CNC machining centers and toolholder setups where consistent performance across ferrous and non-ferrous materials is required. Primary workpiece materials include steel, stainless steel, cast iron, superalloys, titanium, and non-ferrous metals. The coarse pitch, right-hand flute spiral, and centercutting capability make it suitable for slotting, profiling, and plunge operations in production and job-shop environments. It is a single-end, extra-long series tool from the PROMAX US007 family.

Key Features

• 0.030 inch corner radius reduces edge chipping and extends tool life in interrupted cuts
• Variable helix and variable index design suppresses chatter for improved surface finish
• Solid carbide micrograin substrate provides rigidity and wear resistance
• PROMAX PowerLayer coating improves heat resistance and lubricity for dry or minimal-coolant cutting
• Centercutting geometry allows direct plunge entry without pre-drilling
• Right-hand cut, right-hand spiral, 4-flute configuration balances chip evacuation with cutting efficiency

Compatibility

Designed for use with standard straight-bore toolholders accepting a 0.5 inch cylindrical shank. Compatible with primary workpiece materials coded P (steel), M (stainless steel), K (cast iron), S (superalloys and titanium), and N (non-ferrous metals) per ISO material classification.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the toolholder bore and collet are clean and within specified runout tolerances before seating the shank. Power down and lock out the spindle before changing tooling. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and depth of cut being applied.