Description

The SECO 17014119 is a single-end cobalt roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel with a bright uncoated finish, it delivers heat resistance and edge toughness on difficult-to-machine steels and alloys. The 7/8 inch (0.8750 inch) cutting diameter is paired with a 5-flute geometry that breaks chips into smaller segments, reducing cutting forces and allowing higher feed rates. Right-hand cut and right-hand flute direction are standard. This tool is installed and operated by machinists and toolroom professionals in production or job-shop environments.

This end mill fits standard vertical and horizontal milling machines, CNC machining centers, and knee mills accepting a 3/4 inch straight shank. The regular-length profile with a 3.5 inch length of cut and 5.75 inch overall length suits typical roughing passes on ferrous and non-ferrous workpieces. It is not center-cutting, so it is used for peripheral side milling and slotting applications where plunge entry is not required. No extended reach or variable helix features are incorporated, keeping the design straightforward for conventional roughing cycles.

Key Features

M42 cobalt steel construction for elevated heat and wear resistance compared to standard HSS
5-flute roughing geometry breaks chips aggressively, enabling higher feed rates
7/8 inch (0.8750 inch) cutting diameter with mill diameter tolerance of +0.003 to -0.000 inches
3/4 inch shank diameter with shank tolerance of -0.0001 to -0.0005 inches for secure collet or chuck grip
Bright uncoated finish suitable for applications where coatings are not required or may be undesirable
Right-hand cut, right-hand flute, single-end configuration in SECO series REM710

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for milling setups requiring a 3/4 inch straight shank, 7/8 inch diameter, 5-flute single-end cobalt roughing end mill in a regular-length profile.

Installation Notes

Installation is performed by a machinist or toolroom technician. The machine spindle must be fully stopped and locked out before changing tooling. Secure the 3/4 inch shank in a properly sized collet, end mill holder, or Weldon-style chuck to the torque and runout specifications of the holder manufacturer. Confirm that the setup does not require center-cutting capability before use, as this tool does not permit plunge entry.