Osg 17505311 Extra Length Cobalt Drill Bit 0.1563 in

Product Description

The OSG 17505311 is a Series 1750 extra length cobalt drill bit designed for high-performance drilling in demanding applications. It measures 0.1563 inches (5/32 inch shank diameter) in cutting diameter and carries an overall length of approximately 4.72 inches, with a flute length of approximately 2.83 inches. The bit is manufactured from M6K-grade cobalt steel and features a WXL finish that extends tool life in abrasive and hard materials. A 120-degree standard point angle and right-hand spiral flute with fast spiral geometry improve chip evacuation and reduce heat buildup. Licensed machinists, tool and die professionals, and production floor operators are the primary users of this bit.

This drill bit is suited for production machining, aerospace component work, and metalworking applications that require a longer reach than a jobber-length bit provides. The straight-cylindrical shank allows direct chucking in standard drill presses, CNC machining centers, and hand-held power tools with compatible collets or chucks. The extra length geometry is particularly useful for drilling deep holes or reaching recessed bore locations. The WXL coating improves performance in stainless steel, alloy steels, and other difficult-to-machine materials.

Key Features

• M6K-grade cobalt construction for heat and wear resistance in tough materials
• WXL finish reduces friction and extends tool life in abrasive metals
• Fast spiral flute promotes aggressive chip evacuation in deep-hole drilling
• R-thinned web reduces thrust force at the drill point
• 120-degree standard point angle suitable for a wide range of metals
• Straight-cylindrical shank compatible with standard chucks and collets

Compatibility

Designed as an OEM-style extra length drill bit for use in standard straight-shank drill chucks and collets accommodating a 5/32-inch shank diameter.

Installation Notes

Installation is performed by machinists and CNC operators using standard drill press or machining center chucks. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit. Confirm chuck or collet bore matches the 5/32-inch straight-cylindrical shank before tightening. Apply appropriate cutting fluid for the workpiece material to preserve coating integrity and tool life.