Osg 8595279 Screw Machine Drill Bit 0.11 in Hss

Product Description

The OSG 8595279 is a screw machine length drill bit designed for high-performance drilling in a range of metalworking applications. Built from high speed steel (HSS) with a coated finish, this bit features a 130-degree faceted point angle, right-hand cut, and a regular spiral flute configuration for efficient chip evacuation. The web-thinned, tapered web design reduces cutting resistance and improves penetration in tough materials. At 0.11 inches (2.79 mm) in diameter with an overall length of approximately 1.89 inches (48 mm), it suits close-quarter drilling where a jobber-length bit would not fit. This bit is installed by machinists, tool and die workers, and maintenance technicians working with drill presses, CNC machines, and hand-held drilling equipment.

The OSG 8595279 is suited for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate. Its screw machine length - shorter than a standard jobber drill - provides greater rigidity and reduced deflection, making it a reliable choice for precision hole-making on production floors, fabrication shops, and maintenance environments. The Series 1100 designation identifies it within OSG high-performance drill product lines. It is sold individually and ordered in single-unit quantities.

Key Features

• High speed steel construction with coated finish for extended tool life in ferrous and non-ferrous materials
• 130-degree faceted point angle for self-centering entry and reduced walking on hard surfaces
• Web-thinned, tapered web reduces thrust force and improves cut initiation
• Screw machine (stub) length provides added rigidity and reduced deflection versus jobber-length bits
• Regular spiral flute with 5xD flute-to-diameter ratio promotes consistent chip clearing
• Diameter tolerance of +0 to -0.014 mm ensures hole accuracy in precision applications

Compatibility

Designed for use in standard straight-shank drill chucks on drill presses, CNC machining centers, and portable drilling equipment. Primary workpiece materials include steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate.

Installation Notes

Installation is performed by machinists or maintenance technicians using a keyed or keyless chuck matched to the 3 mm (0.118 inch) straight-cylindrical shank. Secure the shank fully in the chuck before operation to prevent runout and slippage. Ensure the workpiece is properly clamped or fixtured before drilling. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed and feed rate selection based on workpiece material.