Osg 15531205 Cobalt Drill Bit 17/32 Inch 130 Degree Tin

Product Description

The OSG 15531205 is a cobalt jobber length drill bit designed for high-performance drilling in steel and alloy steel applications. Measuring 17/32 inches (0.5313 inches) in diameter with a 130-degree drill point angle, this bit handles demanding production and maintenance drilling tasks. The titanium nitride (TiN) coating extends tool life by reducing friction and heat buildup at the cutting edge. A right-hand spiral flute with regular spiral geometry provides efficient chip evacuation, and the R-thinned point enables self-centering entry without a pilot hole. Licensed tradespeople and machining professionals are the primary installers of this tool.

This drill bit is built for use in blind hole, cross hole, and through-hole drilling operations across metalworking, fabrication, and maintenance environments. It performs in both production shop settings and field service scenarios where steel and alloy steel are the primary workpiece materials. The straight-cylindrical shank accommodates standard drill chucks and collet holders sized for 5/8-inch shanks, making it compatible with a wide range of benchtop drill presses, magnetic drills, and hand drills used in trade applications.

Key Features

• Cobalt construction provides heat resistance for drilling hardened and abrasive steel alloys
• TiN coating reduces friction and extends cutting edge life
• 130-degree drill point angle suits harder workpiece materials and reduces thrust force
• R-thinned point geometry enables self-centering without a center punch in many applications
• Regular spiral flute design promotes consistent chip evacuation in blind and through holes
• Straight-cylindrical 5/8-inch shank fits standard drill chucks and collet systems

Compatibility

Designed as an OEM-style replacement and direct-use drill bit for metalworking applications requiring a 17/32-inch cobalt jobber length drill, part of the OSG Series 1500 high-performance drill line. Suitable for use in steel and alloy steel (workpiece material code P) in blind hole, cross hole, drilling, and self-centering operations.

Installation Notes

Drill bits in this size class are installed and operated by machinists, maintenance technicians, pipefitters, and ironworkers using drill presses, magnetic base drills, or heavy-duty hand drills. Ensure the spindle and chuck are fully powered down and locked out before securing or removing the bit. Verify that the chuck or collet is rated for the 5/8-inch shank diameter before tightening. Use appropriate cutting fluid for steel applications to manage heat and prolong tool life.