Osg 650020211 Screw Machine Drill Bit 13/64 Solid Carbide

Product Description

The OSG 650020211 is a solid carbide screw machine length drill bit designed for high-performance drilling in hard and demanding workpiece materials. It measures 0.2031 inches (13/64 inch) in diameter with a 140-degree split point and features a right-hand spiral flute with R-thinned web geometry. The overall length is approximately 3.23 inches (82 mm) and the flute length is approximately 1.02 inches (26 mm). Coolant-through construction supports chip evacuation and tool life in production environments. This bit is intended for use by machinists, tool-and-die professionals, and production drilling technicians.

The OSG 650020211 is suited for screw machine and CNC drilling applications where short, rigid tooling is required. Its 3xD flute-to-diameter ratio and tapered web configuration make it effective in close-tolerance hole production. Primary workpiece materials include steel, alloy steel, cast iron, titanium, and titanium alloys. The straight-cylindrical shank fits standard drill chucks and collet holders used in machining centers and screw machines.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• 140-degree drill point angle reduces thrust and improves hole entry accuracy
• R-thinned web reduces cutting resistance and improves chip flow
• Coolant-through design supports extended tool life in production drilling
• Right-hand spiral flute with regular helix for consistent chip evacuation
• Screw machine length provides added rigidity compared to jobber length bits

Compatibility

Designed as a direct-fit replacement or production drilling tool for applications requiring a 13/64 inch (0.2031 inch) diameter screw machine length carbide drill in steel, alloy steel, cast iron, titanium, and titanium alloy workpieces. Part of the OSG Series 6500 high-performance carbide drill line.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tooling technicians familiar with CNC machining centers or screw machines. Ensure the machine spindle is fully stopped and all power is off before changing or setting tooling. Verify chuck or collet runout is within acceptable tolerance before use to avoid premature tool wear or breakage. Coolant lines should be confirmed clear and active before beginning through-coolant drilling operations.