Seco 02789782 Indexable High-feed End Mill 1/2 in

Product Description

The SECO 02789782 is an indexable high-feed end mill designed for aggressive milling operations where maximizing metal removal rate is the priority. It accepts 3 LP06-style inserts held by screw-clamp retention and runs with a 1/2 inch maximum cutting diameter. The tool carries a maximum depth of cut of 0.03 inches and a maximum ramping angle of 3.90 degrees, making it suited for high-feed, low-engagement milling strategies. At 7 inches overall length with a 1 inch cylindrical shank and through-coolant capability, it is built for high-speed spindle environments reaching up to 30,000 RPM. Machinists and CNC toolroom technicians are the primary installers.

This end mill is used in milling applications on CNC machining centers where high-feed toolpaths are programmed to reduce cycle time while maintaining tool life. The through-coolant feature supports chip evacuation and thermal management during deep-reach or high-RPM passes. It is appropriate for both roughing and semi-finishing stages depending on insert grade selection. The toolholder style is R217.21. Applications are typically found in precision manufacturing, die and mold work, and general metalworking shops running high-volume part programs.

Key Features

• 1/2 inch maximum cutting diameter with R217.21 toolholder style
• Accepts 3 LP06 indexable inserts with screw-clamp holding method
• Maximum depth of cut of 0.03 inches optimized for high-feed, low-axial-engagement strategies
• Through-coolant delivery for chip evacuation and heat control at the cutting zone
• Maximum spindle speed rating of 30,000 RPM
• 3.90 degree maximum ramping angle supports helical and ramp entry toolpaths
• 7 inch overall length with 1 inch cylindrical shank for extended-reach setups

Compatibility

Designed for use with LP06-style indexable inserts in R217.21 toolholder configurations. Confirm insert grade and geometry selection against workpiece material before use.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before changing inserts or mounting the tool in the holder. Verify shank seating and through-coolant port alignment before torquing the retention screw to the tool manufacturer's specification. Confirm programmed feed rates and depths of cut are within the tool's rated parameters before running the first part.