Osg 8691550 Carbide Screw Machine Drill Bit 0.6102 in

Product Description

The OSG 8691550 is a solid carbide screw machine length drill bit designed for high-precision drilling in demanding industrial and metalworking applications. Built to Series 6500 specifications, this stub-length drill features a 140-degree split point and an EgiAs coating for enhanced wear resistance and heat dissipation. The 0.6102 inch (15.50 mm) diameter, combined with a straight-cylindrical shank and X-thinned web, delivers accurate entry and reduced thrust in hard or abrasive materials. With coolant-through capability, it supports through-tool coolant delivery for deep-hole and high-speed operations. Machinists, toolroom technicians, and CNC operators working in production environments are the primary users.

This drill bit is suited for use in CNC machining centers, drill presses, and automated production equipment where tight tolerances and consistent hole quality are required. The stub-length body provides added rigidity compared to jobber-length bits, making it a practical choice for short-reach applications in steel, stainless, cast iron, and other ferrous and non-ferrous materials. The EgiAs finish supports performance across a range of cutting speeds. It is packaged as a single unit and is commonly used in tool crib replenishment and production floor tooling programs.

Key Features

• Solid carbide construction for hardness and wear resistance in demanding materials
• 140-degree split point for accurate self-centering and reduced walking on entry
• EgiAs coating for improved surface finish and extended tool life
• X-thinned web reduces cutting forces and improves chip evacuation
• Coolant-through design supports through-tool coolant for deep-hole drilling
• Straight-cylindrical shank compatible with standard collet chucks and drill holders

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for Series 6500 stub-length drill bit applications requiring a 0.6102 inch diameter with a straight-cylindrical shank and coolant-through capability.

Installation Notes

Installation and tool changes should be performed by qualified machinists or toolroom personnel with the machine fully powered down and in a locked-out state. Verify that the tool holder, collet, or chuck is rated for the shank diameter before seating the bit. Ensure coolant lines are properly connected when using the through-coolant feature. Follow applicable shop safety procedures and machine manufacturer guidelines for tool runout and holding torque.