Seco 17016200 Roughing End Mill 3/4 in 4 Flute Cobalt Ticn

Product Description

The SECO 17016200 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel with a TiCN coating, it delivers heat and wear resistance suited to ferrous and non-ferrous machining. The 0.75-inch mill diameter pairs with a matching 0.75-inch shank diameter, and the long-series geometry provides a 1.625-inch length of cut within a 3.875-inch overall length. Four right-hand spiral flutes with a 30-degree maximum helix angle evacuate chips efficiently while the roughing profile breaks cuts into smaller loads, reducing deflection and extending tool life in heavy-stock removal passes.

This end mill is used in CNC machining centers and manual knee mills for roughing operations on steel, stainless, cast iron, and similar materials. The long flute series suits deeper pockets and stepped cavities where additional reach is required. It is a right-hand cutting tool and is not center-cutting, making it appropriate for side milling, slotting, and peripheral roughing rather than plunge entry. Machinists and tool-and-die professionals in job shops, production facilities, and maintenance departments are the typical installers.

Key Features

• M42 cobalt HSS construction resists heat buildup in demanding cuts
• TiCN coating reduces friction and improves surface wear resistance
• 4 right-hand spiral flutes at up to 30-degree helix for efficient chip evacuation
• Long-series length of cut (1.625 inches) for deeper pocket access
• Roughing geometry reduces cutting forces and minimizes tool deflection
• Single-end design in SECO REM445 series for consistent geometry

Compatibility

Designed as an OEM-style roughing end mill compatible with standard 3/4-inch collet chucks, end mill holders, and side-lock holders used in CNC and manual milling machines.

Installation Notes

Install and remove end mills only after the spindle has come to a complete stop and the machine is locked out per applicable safety procedures. Verify holder bore and collet size match the 0.75-inch shank diameter before clamping. Use a torque wrench and follow the toolholder manufacturer specifications when tightening retention hardware. Because this tool is not center-cutting, avoid programming direct axial plunge moves; use a ramping or helical entry strategy instead.