Osg 215-2660 Carbide Screw Machine Drill Bit 0.266 in

Product Description

The OSG 215-2660 is a solid carbide screw machine length drill bit designed for precision drilling in demanding industrial and machining applications. It features a 0.266 inch (17/64 inch, Letter H) diameter, a 135-degree split point, and a bright uncoated finish. The two-flute spiral design with slow spiral geometry and a tapered web configuration supports controlled chip evacuation and stable cutting performance. Web thinning reduces entry force and improves hole quality. This bit is intended for use by machinists and tool and die professionals working with CNC equipment, drill presses, and manual lathes.

The 215-2660 is suited for drilling steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloy, titanium, and titanium alloy. Its screw machine (stub) length body provides added rigidity compared to jobber-length bits, making it a practical choice for short-reach applications where runout control and rigidity matter. The straight cylindrical shank fits standard drill chucks and collet holders without modification.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials
• 135-degree standard point angle with web thinning for reduced thrust and cleaner entry
• Slow spiral flute geometry promotes chip control in tough alloys
• Bright uncoated finish suitable for general-purpose use across a range of workpiece materials
• Straight cylindrical shank compatible with standard drill chucks and collet holders
• Tapered web configuration adds rigidity and helps maintain concentricity during drilling

Compatibility

Designed as a general-purpose solid carbide screw machine drill bit in OSG Series 215, suitable for use in CNC machining centers, drill presses, and manual lathes drilling steel, stainless steel, cast iron, nickel alloy, titanium, and similar materials.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable tolerances. Carbide tooling is brittle — avoid lateral loading, interrupted cuts without proper feed adjustment, and dropping the bit on hard surfaces. Follow machine manufacturer guidelines for feed and speed settings appropriate to the workpiece material.