Seco 03278994 Indexable Copy Face Mill 50.8 Mm

Product Description

The SECO 03278994 is an indexable copy face mill designed for helical interpolation and ramping operations on machining centers. It accepts four RP 1204 screw-lock inserts and delivers a maximum cutting diameter of 50.8 mm with a minimum cutting diameter of 35.03 mm. Maximum depth of cut is 8 mm. The cutter body features through-coolant capability to manage heat and chip evacuation at the cutting zone. The right-hand cutting direction and 2.70-degree maximum ramping angle make this mill well suited for contour milling and pocket entry moves. The arbor hole diameter is 3/4 inch with an 8.15 mm keyway. This tool is installed and operated by machinists and CNC programmers working in production or job-shop environments.

This face mill belongs to the SECO R220.29 cutter series and is sized for light to medium milling work on ferrous and non-ferrous workpiece materials. It is commonly used on vertical and horizontal machining centers where copy milling, ramping, and helical interpolation toolpaths are programmed. The four-insert configuration supports balanced cutting forces at speeds up to 9600 RPM. Applications include contouring, shoulder milling, and pocket roughing where controlled depth of cut and coolant delivery are required.

Key Features

• Maximum cutting diameter of 50.8 mm with minimum cutting diameter of 35.03 mm
• Accepts four RP 1204 inserts secured by screw-lock holding method
• Through-coolant design for chip evacuation and heat management at the insert
• Maximum ramping angle of 2.70 degrees supports helical interpolation and ramp entry
• Right-hand cutting direction, rated to 9600 RPM maximum spindle speed
• 3/4 inch arbor hole with 8.15 mm keyway for positive drive engagement

Compatibility

Designed for use with RP 1204 series inserts. Belongs to the SECO R220.29 cutter series. Arbor interface is 3/4 inch diameter with an 8.15 mm keyway; confirm arbor and spindle interface compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholder torque and runout specifications. Power down and lock out the machining center spindle before mounting or removing the cutter body or changing inserts. Verify insert seating and screw torque against the SECO tooling catalog before initiating any spindle rotation. Through-coolant lines should be checked for blockage whenever inserts are replaced.