Osg 8569018 Extra Length Drill Bit 1.8mm Carbide Exo

Product Description

The OSG 8569018 is a solid carbide extra length drill bit designed for precision drilling in demanding industrial and metalworking applications. At 1.8 mm in diameter with a 62 mm overall length and a 20 mm flute length, this bit delivers extended reach in confined or deep-hole situations. The EXO coating provides enhanced wear resistance and thermal protection. The 140-degree point angle reduces thrust and improves centering on entry. Three right-hand spiral flutes with a tapered web configuration promote efficient chip evacuation. Machinists, tool-and-die professionals, and CNC operators working in tight-tolerance environments are the primary users.

This drill bit is suited for use in CNC machining centers, drill presses, and manual mills where small-diameter, deep-reach drilling is required. The straight-cylindrical shank with a 3 mm shank diameter fits standard collets and drill chucks without modification. The 20xD flute-to-diameter ratio makes it well suited for applications requiring extended reach beyond what a jobber-length bit can provide. Typical materials drilled include steel alloys, stainless steel, cast iron, and other ferrous metals where a high-performance carbide tool is specified.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• EXO coating reduces friction and extends tool life at elevated cutting temperatures
• 140-degree standard point angle improves self-centering and reduces drill thrust
• Three-flute spiral design promotes chip clearing in small-diameter deep holes
• Tapered web configuration adds strength at the cutting tip
• 20xD flute-to-diameter ratio provides extended reach for deep-hole applications

Compatibility

Designed as an OEM-style replacement or direct-fit option for applications requiring a 1.8 mm solid carbide extra length drill bit with a 3 mm straight-cylindrical shank. Part of OSG Series 5310.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit. Seat the straight-cylindrical shank fully in the collet or chuck and verify concentricity before running at speed. Small-diameter carbide bits are brittle — avoid side loading, interrupted cuts without proper feed rate adjustment, and over-extension beyond the supported flute length.