Osg 215-1299 Carbide Screw Machine Drill Bit 0.1299 in

Product Description

The OSG 215-1299 is a solid carbide screw machine length drill bit designed for precision drilling in demanding metalworking applications. It measures 0.1299 inches (3.30 mm) in diameter with a 135-degree split point angle and a bright, uncoated finish. The two-flute, slow spiral design and web-thinned tapered web configuration reduce thrust and improve chip evacuation in tough materials. At 52.00 mm overall length, this short-body stub drill delivers improved rigidity over jobber-length bits, making it a reliable choice for CNC machining centers, drill presses, and manual operations where hole location accuracy matters.

This drill bit is suited for production and maintenance environments where tight tolerances are required in ferrous and non-ferrous materials. Typical applications include drilling in steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloys, titanium, and titanium alloys. The straight cylindrical shank fits standard drill chucks and collet holders. It is commonly installed by machinists, tool and die technicians, and maintenance professionals in industrial and fabrication settings.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 135-degree point angle reduces walking and lowers entry thrust compared to 118-degree geometry
• Web-thinned tapered web improves chip clearance and reduces cutting force
• Slow spiral flute design optimized for chip control in steel and high-temperature alloys
• Bright uncoated finish maintains sharp cutting edge geometry without coating buildup
• Screw machine (stub) length body increases rigidity and reduces deflection in short-reach operations

Compatibility

Designed for use in standard drill chucks and collet systems accepting a 3.30 mm straight cylindrical shank. Compatible primary workpiece materials include steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloy, titanium, and titanium alloy per OSG Series 215 specifications.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the spindle fully stopped and all power locked out per applicable machine safety procedures. Ensure the shank is fully seated and the chuck or collet is torqued to the tool holder manufacturer specification before operation. Carbide tooling is brittle and should not be subjected to side loads or interrupted cuts outside its rated application range. Follow your facility and machine manufacturer guidelines for speeds and feeds appropriate to the workpiece material.