Osg 8623030 Extra Length Cobalt Drill Bit 0.1181 in

Product Description

The OSG 8623030 is a cobalt extra length drill bit designed for demanding drilling applications in hard and abrasive materials. The bit measures 0.1181 inches (3.00 mm) in diameter with an overall length of 4.134 inches (105.00 mm) and a flute length of 2.126 inches (54.00 mm). It features a 120-degree standard point angle, a fast spiral flute, and OSG WXL surface finish for extended tool life. The straight-cylindrical shank matches the 0.1181-inch body diameter for direct chuck mounting. Web thinning is R-Thinned with a tapered web configuration, and cutting direction is right hand. This is a Series 1750 high-performance tool suited for machinists, tool and die technicians, and maintenance professionals.

This bit is built for applications requiring extra reach beyond standard length, including through-holes in stacked materials, deep-cavity drilling in dies and molds, and precision work in aerospace-grade alloys, stainless steel, and high-temp metals. The M6K cobalt grade provides heat resistance and edge retention in materials that quickly wear high-speed steel tooling. The fast spiral promotes chip evacuation in deep-hole operations. It is sold individually and is appropriate for use in CNC machining centers, drill presses, and hand-held industrial drilling equipment where a collet or Jacobs-style chuck accepts a straight cylindrical shank.

Key Features

• Cobalt M6K grade construction for heat resistance and durability in hard materials
• WXL finish reduces friction and extends tool life between regrinds
• Extra length design at 4.134 inches overall allows reach into deep cavities
• 120-degree standard point angle with R-Thinned web reduces thrust and improves centering
• Fast spiral flute promotes efficient chip evacuation in deep-hole drilling
• Right-hand cutting, 2-flute configuration for standard drill press and CNC use

Compatibility

Designed as an OEM-style replacement or direct-use cutting tool for applications requiring a 0.1181-inch diameter straight-shank extra length drill bit in cobalt construction; fits any chuck or collet accepting a 0.1181-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with cutting tool safety. Ensure the chuck or collet is fully engaged on the straight-cylindrical shank and the workpiece is securely fixtured before beginning any drilling operation. Always follow applicable shop safety standards and machine manufacturer guidelines when selecting speeds and feeds for cobalt tooling in hard materials. Inspect the cutting edges and web condition before each use and discontinue use if chipping or excessive wear is observed.