Osg 6253311 Jobber Drill Bit 3.30 Mm Tialn Vanadium Hss

Product Description

The OSG 6253311 is a TiAlN-coated vanadium high speed steel jobber-length drill bit designed for high-performance drilling in steel, stainless steel, aluminum, and aluminum alloys. At 3.30 mm in diameter with a 130-degree S-thinned point, it self-centers reliably and reduces thrust when entering harder workpiece materials. The two-flute spiral design with a tapered web configuration evacuates chips efficiently during blind-hole and through-hole operations. With an overall length of 68.00 mm and a 4.00 mm straight-cylindrical shank, this bit seats securely in standard drill chucks and collet holders. Machinists and tool-and-die professionals working in production or maintenance environments will find this Series 1600 bit suited to a range of drilling applications.

This bit is built for use on steel and stainless steel as well as non-ferrous materials including aluminum, aluminum alloy, and aluminum silicate. Typical applications include blind-hole drilling, cross-hole drilling, and self-centering entry cuts in both manual and CNC drilling operations. The TiAlN coating improves heat resistance at the cutting edge, making it a practical choice for dry or minimal-lubrication machining environments where tool life under elevated temperatures is a concern.

Key Features

• 3.30 mm diameter with a diameter tolerance of +0 to -0.018 mm for consistent fit in close-tolerance work
• 130-degree S-thinned point reduces thrust and improves self-centering on entry
• TiAlN coating increases surface hardness and heat resistance for extended tool life
• Vanadium high speed steel substrate provides toughness across a wide range of workpiece materials
• Two-flute regular spiral with tapered web for effective chip evacuation in blind and cross-hole drilling
• 4.00 mm straight-cylindrical shank fits standard drill chucks and collet systems without adapters

Compatibility

Designed for use on primary workpiece materials including steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate. Compatible with standard drill chucks and collet holders accepting a 4.00 mm straight-cylindrical shank. Suitable for use in manual drill presses, CNC machining centers, and handheld drill motors where the spindle can accept the shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or tool-room personnel familiar with cutting tool handling and machine operation. Before mounting or changing the bit, ensure the machine spindle is fully stopped and locked out per applicable safety procedures. Seat the shank fully and evenly in the chuck or collet before tightening to prevent runout. Do not exceed the recommended speed and feed parameters for the workpiece material and machine type.