Seco 17007070 Corner Radius End Mill 1in 5 Flute Altin

Product Description

The SECO 17007070 is a solid carbide corner radius end mill engineered for high-performance milling in demanding materials including steel, stainless steel, superalloys, titanium, and hard materials. It features a 1 inch cutting diameter, a 1.25 inch length of cut, and a 0.0150 inch corner radius that reduces stress concentration at the cutting edge and extends tool life in finishing passes. The five-flute, right-hand spiral geometry with a high 45-degree helix angle promotes efficient chip evacuation and smooth surface finishes. An AlTiN PVD coating provides thermal resistance and hardness at elevated cutting temperatures, making this end mill well suited for dry or semi-dry machining strategies.

This end mill is designed for finishing operations on ferrous metals, stainless steel grades, nickel-based superalloys, titanium alloys, and hardened steels typically encountered in aerospace, die and mold, and precision machining environments. Its stub-length profile and straight-cylindrical 1 inch shank provide rigidity in standard milling toolholders. The centercutting design allows plunge entry, adding flexibility for slotting and ramping applications. It is part of the SECO S545R series, which targets high-productivity finishing in difficult-to-machine materials.

Key Features

• 1 inch cutting diameter with a 0.0150 inch corner radius for reduced edge chipping in finishing cuts
• Five-flute design increases feed rate potential compared to four-flute equivalents in finishing applications
• 45-degree high-helix angle promotes chip flow and reduces cutting forces in tough alloys
• AlTiN PVD coating delivers oxidation resistance and hardness for dry or semi-dry machining
• Centercutting geometry enables direct plunge entry and ramping operations
• Solid carbide construction provides stiffness and vibration damping in stub-length reach

Compatibility

Designed for use with standard milling toolholders accepting a 1 inch straight-cylindrical shank. Intended for finishing operations on steel, stainless steel, superalloys and titanium, and hard materials as part of the SECO S545R series.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine control in an estop or locked-out state. Confirm toolholder bore and runout before seating the shank, as the specified maximum TIR is 0.0005 inches. Secure the shank to the recommended engagement depth per the toolholder manufacturer guidelines. Do not exceed the toolholder manufacturer stated clamping torque for this shank diameter.