Osg 3334350 Screw Machine Drill Bit 6.6mm Carbide

Product Description

The OSG 3334350 is a solid carbide screw machine length drill bit engineered for high-performance drilling in steel, alloy steel, and cast iron. It has a 6.6 mm (0.2598 inch) diameter, a 180-degree web-thinned point, and an overall length of 70 mm (2.756 inches). The EgiAs coating improves surface hardness and heat resistance during cutting. The bit features coolant-through capability, making it well suited for CNC machining centers and automated drilling operations where chip evacuation and tool life are critical. This is a professional-grade cutting tool installed by machinists, toolroom technicians, and CNC operators.

This drill bit is designed for screw machine length applications where a shorter, more rigid tool is required to minimize deflection at the spindle. The 3xD flute-to-diameter ratio and straight-cylindrical shank with an 8 mm (0.315 inch) shank diameter make it compatible with standard collet chucks and drill chucks used in CNC machining centers and screw machine setups. Primary workpiece materials include steel, alloy steel, and cast iron. It is suited for production environments where consistent hole geometry and tight diameter tolerances are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• 180-degree web-thinned point reduces entry thrust and improves centering
• EgiAs coating enhances heat resistance and extends tool life
• Coolant-through design supports high-speed, high-feed drilling with active chip flushing
• Regular spiral, 2-flute geometry promotes efficient chip evacuation
• Diameter tolerance of +0 to -0.022 mm supports precise hole sizing

Compatibility

Designed for use in CNC machining centers, screw machines, and automated drilling equipment accepting straight-cylindrical shank tooling. Primary workpiece materials are steel, alloy steel, and cast iron per OSG Series 5720 application data.

Installation Notes

Installation should be performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the straight-cylindrical shank fully and evenly in the collet or drill chuck to the manufacturer-recommended grip length to prevent runout. Verify coolant-through supply lines are clear and delivering adequate flow before initiating a drilling cycle.