Osg 8594038 Jobber Drill Bit No. 25 Ticn Hss

Product Description

The OSG 8594038 is a jobber-length twist drill bit designed for high-performance drilling in metal fabrication, machining, and maintenance applications. Built from vanadium high-speed steel (HSS) and finished with a titanium carbonitride (TiCN) coating, this bit handles demanding materials including steel, alloy steel, stainless steel, cast iron, aluminum, and aluminum alloys. The wire gauge size is No. 25, with a decimal equivalent of 0.1495 inches (3.80 mm). The 120-degree point angle with X-thinned web geometry reduces entry force and improves self-centering, making it a reliable choice for precision hole work.

This bit fits standard jobber-length drill applications in metalworking shops, maintenance and repair operations, and fabrication environments. It is suited for blind hole drilling, cross-hole drilling, and general through-hole work in both production and service settings. The straight-cylindrical shank accepts standard 3-jaw chucks on drill presses, CNC machining centers, and hand drills. With an overall length of 75.00 mm and a flute length of 43.00 mm, it handles typical metal stock depths found in trade and industrial work. Primary workpiece material codes P, M, K, and N indicate compatibility across ferrous and non-ferrous metals per ISO classification.

Key Features

• TiCN coating increases surface hardness and lubricity for extended tool life in steel and stainless steel
• X-thinned web point reduces thrust force and aids self-centering without a separate spotting operation
• Vanadium high-speed steel construction maintains cutting edge integrity at elevated temperatures
• 120-degree split-point geometry suitable for steel, cast iron, aluminum, and aluminum alloys
• Regular spiral flute with tapered web configuration promotes chip evacuation in through and blind holes
• Diameter tolerance of plus 0 to minus 0.018 mm supports close-tolerance hole requirements

Compatibility

Designed for use on steel, alloy steel, stainless steel, cast iron, aluminum, aluminum alloy, and aluminum silicate workpieces. ISO material codes P, M, K, and N. Suitable for tool applications including blind hole drilling, cross-hole drilling, general drilling, and self-centering operations per OSG Series 1800 specifications.

Installation Notes

Installation and use should be performed by a qualified machinist or tradesperson familiar with rotary cutting tools. Secure the straight-cylindrical shank fully in a compatible chuck and verify runout before drilling. Power down and de-energize any machine tool before installing or removing the bit. Do not exceed the material and speed-feed parameters appropriate for HSS tooling in the target workpiece material.