Osg 3330800 Screw Machine Drill Bit 8mm Solid Carbide

Product Description

The OSG 3330800 is a solid carbide screw machine length drill bit designed for high-performance drilling in steel, alloy steel, and cast iron. It features an 8.00 mm diameter with a 180-degree web-thinned point that reduces thrust and improves centering at entry. The EgiAs coating provides enhanced lubricity and wear resistance to extend tool life in demanding production environments. With an overall length of 75.00 mm and a flute length of 34.00 mm, this bit is built for stub-length rigidity. It is installed and operated by machinists and tool-and-die professionals in CNC and manual drilling applications.

This drill bit is suited for screw machine and production drilling operations where short overall length reduces deflection and improves hole accuracy. Primary workpiece materials include steel, alloy steel, and cast iron, making it a practical choice for job shop and production floor environments. The straight-cylindrical shank allows direct chuck mounting in standard drilling equipment. The 2xD flute-to-diameter ratio supports efficient chip evacuation in shallow-to-moderate depth holes.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• EgiAs coating for improved lubricity and extended cutting tool life
• 180-degree web-thinned, tapered-web point reduces entry thrust and improves self-centering
• Screw machine length provides enhanced stability and reduced deflection versus jobber-length bits
• Right-hand cutting with regular spiral flute geometry for efficient chip removal
• Straight-cylindrical shank compatible with standard drill chucks and collets

Compatibility

Designed for use in standard drill chucks and collet systems accepting an 8.00 mm straight-cylindrical shank. Intended for drilling steel, alloy steel, and cast iron workpieces in screw machine and production drilling applications.

Installation Notes

This bit should be installed and operated by qualified machinists familiar with carbide tooling. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits, as carbide is brittle and sensitive to lateral loading. Do not use on materials outside the rated workpiece range, and avoid hand-grinding the point without proper carbide grinding equipment. Coolant-through is not supported on this bit; use external coolant or cutting fluid as required by the workpiece material.