Osg 3330570 Screw Machine Drill Bit 0.2244 in Solid Carbide

Product Description

The OSG 3330570 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. It measures 0.2244 inches (5.70 mm) in diameter with a 180-degree flat point geometry and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The straight-cylindrical shank measures 6.00 mm in diameter. At 65.00 mm overall length with a 27.00 mm flute length, this is a stub-length format optimized for rigidity in short-reach applications. It features a right-hand cut, regular spiral flute, and a coated finish for extended tool life. The 2xD flute-to-diameter ratio supports chip flow in moderate-depth holes. This bit is suited for CNC machining centers, drill presses, and manual machine setups where dimensional accuracy in steel and cast iron is required.

The OSG 3330570 is intended for use in production and precision machining environments. Primary workpiece materials are steel, alloy steel, and cast iron. The screw machine length format keeps overhang minimal, which reduces deflection and improves hole location accuracy. It is a common choice for shops running high-volume repetitive drilling cycles where tool rigidity and consistent diameter tolerance are priorities. The diameter tolerance is held to +0 to -0.018 mm, supporting close-tolerance hole requirements. Coolant-through capability is not available on this model; flood or mist coolant applied externally is the standard approach.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• 180-degree flat point angle reduces walking and allows drilling without a center punch in many setups
• Web-thinned tapered web lowers entry thrust and improves chip clearing
• Coated finish extends cutting edge life in abrasive materials
• Screw machine (stub) length format minimizes deflection in short-reach drilling applications
• Diameter tolerance of +0 to -0.018 mm supports close-tolerance production work

Compatibility

Designed as a direct-fit replacement or standard-use solid carbide screw machine drill bit for machining applications involving steel, alloy steel, and cast iron workpieces. Part of the OSG Series 5700 line.

Installation Notes

This drill bit is installed and operated by machinists and toolroom technicians using standard toolholders compatible with a straight-cylindrical shank. Ensure the spindle and chuck or collet are clean and free of runout before seating the shank. Do not exceed the recommended surface footage and feed rates for solid carbide tooling in the target workpiece material. External flood or mist coolant should be directed at the cutting zone, as this bit does not support coolant-through delivery.