Description

The SECO 17016586 is a single-end roughing end mill designed for aggressive material removal in metal machining applications. Built from M42 cobalt high-speed steel and coated with TiCN for heat and wear resistance, this tool handles tough ferrous and non-ferrous workpiece materials at sustained cutting rates. The 1/2-inch diameter, 4-flute configuration with a 30-degree maximum helix angle balances chip evacuation with cutting stability. A 2-inch length of cut and 4-inch overall length make it suitable for standard-depth roughing passes on milling machines and machining centers. Center-cutting geometry allows plunge entry without a pre-drilled start hole.

This end mill is intended for roughing operations where rapid stock removal takes priority over surface finish. It is well suited for use in manual knee mills, CNC vertical machining centers, and horizontal milling setups across job shops, tool rooms, and production machining environments. The right-hand cut and right-hand flute direction are standard for conventional milling spindle rotation. The REC700 series designation places it within SECO’s high-performance roughing line for general-purpose metalworking.

Key Features

M42 cobalt construction for elevated red hardness and wear resistance in tough materials
TiCN coating extends tool life and reduces built-up edge at the cutting zone
4 flutes with spiral right-hand flute direction for efficient chip flow
30-degree maximum helix angle balances cutting forces and chip evacuation
Center-cutting design permits direct plunge entry into workpiece
1/2-inch shank diameter with shank tolerance of -0.0001 to -0.0005 inches for consistent tool-holder fit

Compatibility

Designed as an OEM-style roughing end mill for use in standard 1/2-inch end mill holders, collet chucks, and hydraulic toolholders on vertical and horizontal milling machines.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the milling spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the tool holder and torque the retention mechanism per the tool-holder manufacturer’s specification. Inspect the cutting edges and coating for chips or damage before each use; a damaged roughing end mill can cause workpiece scrap or tool breakage under load.