Osg 3330520 Screw Machine Drill Bit 0.2047 in Solid Carbide

Product Description

The OSG 3330520 is a screw machine length drill bit engineered for high-performance drilling in ferrous materials. Built from solid carbide with a coated finish, it delivers extended tool life and consistent cutting performance in demanding production environments. The bit measures 5.20 mm (0.2047 inches) in diameter with a 180-degree flat drill point, making it well suited for flat-bottomed hole applications and precise entry without a pilot. With a 2xD flute-to-diameter ratio and a web-thinned, tapered web configuration, it maintains chip evacuation efficiency at shorter cutting lengths. This bit is typically installed and operated by machinists, tool-and-die workers, and CNC machine operators.

The OSG 3330520 is designed for drilling steel, alloy steel, and cast iron in screw machine, CNC lathe, and production drilling applications. Its screw machine length profile — shorter overall than jobber bits — provides added rigidity and reduced deflection when used in close-tolerance drilling fixtures or turret-style machine setups. The straight-cylindrical shank seats directly in standard drill chucks and collet holders without modification. This bit is suited for high-volume production runs where dimensional accuracy and consistent hole quality are required.

Key Features

• Solid carbide construction for high wear resistance in ferrous materials
• 180-degree flat drill point for flat-bottomed entry without a center punch or pilot
• Web-thinned tapered web reduces thrust force and improves chip flow
• Coated finish extends cutting life in steel and alloy steel applications
• Screw machine length body provides added rigidity and reduced deflection
• Straight-cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed for use in screw machine, CNC lathe, and production drilling setups where a straight-cylindrical shank drill bit with a 6.00 mm shank diameter is required. Suitable for drilling steel, alloy steel, and cast iron workpieces.

Installation Notes

Installation and operation should be performed by qualified machinists or CNC operators familiar with carbide tooling. Ensure the machine spindle and chuck or collet are fully powered down and secured before loading the bit. Carbide bits are brittle and should not be used in hand-held drilling applications or in machines with excessive runout, as this can cause chipping or fracture. Verify shank seating and chuck tightness before initiating a cut.