Osg 220-1575 Solid Carbide Jobber Drill Bit 4 Mm

Product Description

The OSG 220-1575 is a solid carbide jobber-length drill bit designed for precision drilling in a wide range of metalworking applications. Built to Series 220D specifications, it features a 4 mm diameter, a 118-degree drill point angle with web-thinned geometry, and a right-hand spiral flute configuration. The bright uncoated carbide construction provides rigidity and dimensional accuracy, with a diameter tolerance of +0 to -0.013 mm. With an overall length of 64 mm and a flute length of 35 mm, this bit suits standard jobber-length drilling setups used by machinists, tool-and-die technicians, and fabrication pros.

The 220-1575 is suited for drilling blind holes, cross holes, and self-centering operations in production and maintenance environments. Compatible workpiece materials include steel, alloy steel, stainless steel, cast iron, aluminum, aluminum alloy, and aluminum silicate. The straight-cylindrical shank fits standard drill chucks and collet holders without modification. This bit performs well in general-purpose metalworking scenarios on CNC machining centers, drill presses, and manual mills where consistent hole quality is required.

Key Features

• Solid carbide construction for rigidity and wear resistance in metallic workpieces
• 118-degree web-thinned point for reduced thrust and improved self-centering
• Right-hand regular spiral flute for efficient chip evacuation
• Bright uncoated finish suitable for use with or without cutting fluid
• Straight-cylindrical shank fits standard drill chucks and collet systems
• Diameter tolerance of +0 to -0.013 mm for consistent, repeatable hole sizing

Compatibility

Designed as a general-purpose replacement drill bit for use in standard jobber-length drill applications across steel, alloy steel, stainless steel, cast iron, aluminum, and aluminum alloy workpieces as noted in the OSG Series 220D product line.

Installation Notes

Installation and use of solid carbide drill bits should be performed by qualified machinists or tooling technicians familiar with cutting tool setup and machine operation. Secure the straight-cylindrical shank firmly in a properly sized drill chuck or collet before operation, and verify runout is within acceptable limits to avoid chipping the carbide. Power down and lock out the machine spindle before changing or inspecting the bit. Coolant-through is not supported on this bit, so apply external cutting fluid as needed based on workpiece material and feed-speed parameters.