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The OSG 8623231 is a cobalt extra-length drill bit designed for high-performance drilling in tough materials. Built to Series 1750 standards, it carries a WXL finish and features a spiral flute with a right-hand cutting direction. The straight-cylindrical shank measures 0.122 inches in diameter, matching the drill diameter for straightforward chuck setup. With a 120-degree standard point angle and R-thinned, tapered web, it enters material cleanly and reduces thrust. This bit is suited for machinists, tool-and-die workers, and production drilling applications where standard-length bits cannot reach.
The 8623231 is built for applications requiring extended reach into deep bores, stacked materials, or difficult-access features. The cobalt M6K material grade provides heat and wear resistance suited to drilling alloy steels, stainless steels, cast iron, and similar hard materials. The fast spiral flute geometry promotes chip evacuation in deep-hole drilling scenarios. It is a single-piece, individually packaged bit used in drill presses, CNC machining centers, and manual milling setups.
Designed as an OEM-style replacement or direct-use extra-length drill bit for machining operations requiring a 0.122-inch diameter cobalt bit with a straight-cylindrical shank.
Installation of this drill bit should be performed by a qualified machinist or tooling technician. Secure the shank fully in a properly sized drill chuck or collet before operation and verify runout is within acceptable limits. Always power down and de-energize the machine spindle before changing tooling. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed selection when drilling hard materials.
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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