Description

The SECO 17011956 is a single-end square end mill designed for high-performance milling across a range of metal workpiece materials. Built from M42 cobalt high-speed steel and coated with TiAlN, it delivers heat and wear resistance needed in demanding cutting environments. The tool measures 1 inch in cutting diameter, carries a 2 inch length of cut, and runs a 6-flute spiral configuration with a 30-degree helix angle. Right-hand cut and right-hand flute geometry make it compatible with standard CNC and manual milling setups. Centercutting capability allows plunge milling without a pilot hole. It is installed and operated by machinists and tool-and-die professionals in production and job-shop environments.

This end mill is suited for milling steel, stainless steel, cast iron, aluminum and non-ferrous metals, and high-temperature alloys, covering ISO material groups P, M, K, N, and S. The short-length classification and 1 inch shank diameter make it a practical choice for rigid setups in vertical and horizontal milling machines. The SPC408 series designation identifies it within SECO’s cobalt end mill line. It is appropriate for slotting, profiling, and plunge operations where a centercutting, multi-flute tool is required.

Key Features

M42 cobalt construction with TiAlN coating for extended tool life in ferrous and high-temp alloy applications
6-flute spiral design with 30-degree helix angle for improved surface finish and chip evacuation
Centercutting geometry allows direct plunge entry without a pre-drilled hole
Right-hand cut and right-hand flute compatible with standard spindle rotation
1 inch shank diameter with tight tolerance for secure toolholder engagement
No coolant-through requirement suitable for standard external coolant or dry cutting setups

Compatibility

Designed as an OEM-style replacement and direct-fit cutting tool for milling machines accepting a 1 inch straight shank end mill in standard toolholders, collet chucks, or Weldon-style holders.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify toolholder bore diameter and projection length before seating the shank. Confirm runout does not exceed the rated TIR maximum of 0.0010 inches after installation using a dial indicator before beginning the cut.

Technical Specifications

Mill Diameter: 1 inch
Length of Cut: 2 inches
Shank Diameter: 1 inch
Overall Length: 4.5 inches
Number of Flutes: 6
End Mill Material: Cobalt (M42)
Coating/Finish: TiAlN
Helix Angle: 30 degrees
Flute Type: Spiral
Cutting Direction: Right Hand
Flute Direction: Right Hand
Single or Double End: Single
Centercutting: Yes
Mill Diameter Tolerance: +0.0000 to -0.0030 inches
Shank Diameter Tolerance: -0.0001 / -0.0005 inches
Overall Length Tolerance: +0.0620 / 0.0000 inches
TIR Maximum: 0.0010 inches
Series: SPC408
Length Type: Short
Weight: 0.09 pounds
Primary Workpiece Materials: Steel, Stainless Steel, Cast Iron, Aluminum and Non-Ferrous, High-Temp Alloy
UNSPSC Code: 27112803