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The OSG 3181840 is a solid carbide square end mill designed for precise material removal in milling operations. With a 0.1575-inch cutting diameter and a 0.2362-inch length of cut, this single-end tool delivers clean, accurate profiles in ferrous and non-ferrous materials. The 30-degree helix angle promotes efficient chip evacuation and reduces cutting forces. Applied WXL coating improves wear resistance and extends tool life in demanding applications. Micrograin carbide construction provides the hardness and edge retention needed for tight-tolerance work. This end mill is installed and used by machinists and tool-and-die professionals on CNC machining centers and manual mills.
The OSG 3181840 is suited for finish milling, slotting, and profiling operations on small-diameter features. Its 0.2362-inch shank diameter fits standard collet chucks and end mill holders. The two-flute configuration allows for higher chip loads in softer materials and improves chip clearance in slotting cuts. It is centercutting, enabling direct plunge entry. This tool is appropriate for use in prototype shops, production machining environments, and precision toolroom applications where small-diameter accuracy is critical.
Designed for use with standard collet chucks and end mill holders accepting a 0.2362-inch shank diameter. Part of the OSG Series 3720 solid carbide end mill line.
Installation is performed by a machinist or toolroom professional. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the collet or end mill holder and torque the retention mechanism to the holder manufacturer's specification. Verify runout with a dial indicator before beginning the cut.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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