Osg 8623216 Extra Length Cobalt Drill Bit 0.063 in

Product Description

The OSG 8623216 is a cobalt extra length drill bit designed for drilling applications that demand extended reach and heat-resistant performance. Built from cobalt high-speed steel and finished with OSG WXL coating, this bit handles harder materials and higher temperatures than standard HSS bits. It measures 0.063 inches (1.60 mm) in diameter with an overall length of 3.35 inches (85.00 mm), giving it the reach needed for deeper holes without sacrificing rigidity. The 120-degree point angle and R-thinned web reduce entry force and improve centering on tough materials. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole drilling operations.

This bit is suited for metalworking and precision machining environments where standard-length bits cannot reach. Typical applications include drilling stainless steel, alloy steel, cast iron, and other hard or abrasive materials in manufacturing, toolroom, and maintenance-repair operations. The straight-cylindrical shank allows direct chuck mounting on drill presses, CNC machining centers, and hand-held power drills. The 20xD flute-to-diameter ratio supports deeper hole drilling relative to the bit diameter, making it a practical choice for sheet metal, structural components, and fabrication work.

Key Features

• Cobalt construction resists heat buildup when drilling hard and abrasive metals
• WXL finish improves lubricity and extends tool life in demanding cut conditions
• 120-degree point angle with R-thinned web reduces thrust force and improves centering
• Spiral flute design with 2 flutes promotes efficient chip evacuation
• 20xD flute-to-diameter ratio provides extra reach for deep-hole applications
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed for use in standard drill chucks and collet holders accepting a 2.00 mm (0.079 inches) straight-cylindrical shank, compatible with drill presses, CNC machining centers, and portable power drills used in metalworking and fabrication.

Installation Notes

Installation and use should be performed by qualified machinists or tool operators familiar with cutting tool safety. Secure the shank fully in the chuck or collet before operation and verify runout before drilling. Always use appropriate cutting fluid or coolant for the workpiece material to preserve tool life. Follow applicable shop safety standards and machine-guarding requirements when operating drilling equipment.