Seco 17010361 Roughing End Mill 1/4 in 4 Flute Cobalt

Product Description

The SECO 17010361 is a single-end cobalt roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel, it delivers heat and wear resistance suited for tough ferrous and non-ferrous materials. The 4-flute, right-hand spiral configuration with a 30-degree maximum helix angle promotes efficient chip evacuation during roughing passes. At 0.25 inches in diameter with a 0.375-inch shank, this tool fits standard milling chucks and collets without adapters. The bright, uncoated finish is standard for general-purpose roughing work. Licensed machinists and toolroom professionals are the typical end users for this style of cutter.

This end mill is suited for roughing operations on manual mills, CNC machining centers, and knee mills where a small-diameter, high-performance cutter is required. The regular-length geometry with a 1.25-inch length of cut and 3.0625-inch overall length makes it practical for shallow-to-moderate pocket and slot roughing. The non-centercutting design means it requires a pre-drilled entry point or ramp entry for plunge-style operations. It carries SECO REM445 series designation, indicating its positioning within a defined family of roughing end mills.

Key Features

• M42 cobalt high-speed steel construction for elevated heat resistance during heavy roughing cuts
• 4-flute right-hand spiral design at 30-degree maximum helix angle for efficient chip flow
• 0.25-inch mill diameter with 0.375-inch shank for compatibility with standard toolholding
• 1.25-inch length of cut accommodates shallow pocket and slot roughing applications
• Bright, uncoated finish suited for general-purpose ferrous and non-ferrous roughing
• Non-centercutting geometry requires pre-drilled or ramped entry — not for direct plunge milling

Compatibility

Designed as an OEM-style roughing end mill for use in standard milling machine toolholders accepting a 0.375-inch shank diameter. No specific machine model compatibility was provided in the product data.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Secure the shank in a clean, properly sized collet or end mill holder and torque the retention mechanism per the toolholder manufacturer's specifications. Confirm spindle direction is set to right-hand rotation before engaging the workpiece. Because this is a non-centercutting end mill, always use a pre-drilled hole or programmed ramp entry rather than a direct axial plunge to avoid tool damage.