Osg 8623221 Extra Length Cobalt Drill Bit 2.1 Mm

Product Description

The OSG 8623221 is an extra length cobalt drill bit designed for demanding precision drilling applications where standard-length bits fall short. Measuring 2.1 mm in diameter with a 90 mm overall length and a 50 mm flute length, this bit provides extended reach into deep-hole applications. The 120-degree drill point angle and proprietary R-thinned web geometry reduce thrust and improve centering at entry. OSG WXL coating enhances wear resistance and heat dissipation, extending tool life in hard and abrasive materials. Two right-hand spiral flutes evacuate chips efficiently, making this bit well suited for production environments and tight-tolerance work.

This extra length drill bit is used in metalworking, precision machining, and fabrication applications where a standard jobber-length bit cannot reach. The 2.1 mm diameter and 20xD flute-to-diameter ratio make it appropriate for deep-hole drilling in steel, stainless, cast iron, and similar ferrous materials. The straight-cylindrical shank seats in standard drill chucks and collet holders without modification. Machinists, toolroom technicians, and CNC operators working with small-diameter deep-hole applications will find this bit directly applicable to their setups.

Key Features

• Cobalt construction with WXL coating for elevated heat and wear resistance
• 120-degree point angle with proprietary R-thinned web for reduced entry thrust and improved self-centering
• 50 mm flute length on a 90 mm overall length for deep-hole reach at 2.1 mm diameter
• Two right-hand spiral flutes with regular helix for consistent chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks and collet toolholders
• 20xD flute-to-diameter ratio suited for deep drilling without regrind or pilot steps

Compatibility

Designed as an OEM-style replacement or direct-use extra length drill bit for standard drill chucks and collet holders accepting a 2.0 mm straight-cylindrical shank.

Installation Notes

This bit is installed and serviced by machinists and toolroom technicians using standard drill presses, CNC machining centers, or hand-held precision drilling equipment. Secure the straight-cylindrical shank firmly in a drill chuck or collet holder before operation and confirm runout is within acceptable tolerance for the application. Disengage the machine and isolate power before changing or inspecting tooling. Do not exceed the bit diameter or material hardness ratings specified by the manufacturer, and apply appropriate cutting fluid to extend tool life in hard ferrous materials.