Osg 220-1181 Solid Carbide Jobber Drill Bit 3 Mm

Product Description

The OSG 220-1181 is a solid carbide jobber-length drill bit designed for precision drilling in metalworking applications. Ground to a 118-degree point angle with web thinning for improved self-centering and reduced thrust, this bit runs in a right-hand, spiral-flute configuration on a straight-cylindrical shank. The bright uncoated finish suits general-purpose use across a wide range of workpiece materials. Overall length is 57 mm with a 32 mm flute length and a 3 mm diameter held to a tight tolerance of +0 to -0.013 mm. It is part of OSG Series 220D and is sold individually.

This bit is suited for production and maintenance drilling in ferrous and non-ferrous materials including steel, alloy steel, stainless steel, cast iron, aluminum, aluminum alloy, and aluminum silicate. Typical applications include blind hole drilling, cross hole drilling, through-hole drilling, and self-centering operations on CNC machining centers, drill presses, and manual mills. The 2-flute spiral geometry provides efficient chip evacuation at standard cutting speeds for these material groups.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• 118-degree web-thinned point for reduced entry thrust and improved self-centering
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• Tight diameter tolerance: +0 to -0.013 mm for consistent hole sizing
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Bright uncoated finish suitable for use with or without cutting fluid

Compatibility

Designed as a general-purpose jobber-length drill bit for use in CNC machining centers, drill presses, and manual milling machines equipped with standard drill chucks or collet systems accepting a 3 mm straight shank.

Installation Notes

Installation and use of this drill bit should be performed by machinists or qualified trade professionals familiar with cutting tool setup and machine operation. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Secure the shank fully in the chuck or collet to the recommended engagement depth to prevent pullout under load. Do not use this bit beyond its rated workpiece material range, and apply cutting fluid as appropriate for the material being drilled to maximize tool life.