Seco 17010357 Roughing End Mill 3/16 in 4 Flute Cobalt

Product Description

The SECO 17010357 is a single-end cobalt roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel in a bright, uncoated finish, this end mill features a 3/16 inch (0.1875 inch) mill diameter with a 1/2 inch length of cut and a 2-3/8 inch overall length. The 4-flute spiral geometry with a right-hand cutting direction and 30-degree maximum helix angle supports efficient chip evacuation during roughing passes. The 3/8 inch shank diameter fits standard collet and end mill holders common in machine shop tooling setups. It is a non-centercutting tool and does not include coolant-through capability.

This end mill is suited for roughing operations on ferrous and non-ferrous metals where high material removal rates are the priority. The M42 cobalt construction provides elevated heat resistance compared to standard M2 HSS, making it a practical choice for harder work materials or interrupted cuts. It belongs to the REM445 series and is packaged as a single unit. Machinists and tool crib supervisors handling production or maintenance machining will find this a direct-use replacement or stocking item for small-diameter roughing work.

Key Features

• M42 cobalt HSS construction for elevated heat and wear resistance
• 3/16 inch mill diameter with 1/2 inch length of cut
• 4-flute spiral geometry, right-hand cut and flute direction
• 30-degree maximum helix angle for effective chip flow during roughing
• Bright, uncoated finish — no coating degradation risk in abrasive materials
• Single-end design; non-centercutting configuration

Compatibility

Designed as an OEM-style roughing end mill fitting standard 3/8 inch collet chucks and end mill holders used in vertical and horizontal milling machines.

Installation Notes

Installation is performed by qualified machinists or tool and die technicians. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the 3/8 inch shank fully and evenly in the collet or end mill holder and torque the retention mechanism per the machine manufacturer specification. As a non-centercutting tool, do not plunge directly into solid material — use a ramping or peripheral entry strategy.