Osg 8692780 Carbide Jobber Drill Bit 7.8mm Egias

Product Description

The OSG 8692780 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding metalworking applications. Built to Series 6510 specifications, it features a 7.8 mm (0.3071 inch) diameter, a 140-degree R-thinned point, and an EgiAs coating that extends tool life in abrasive and hard materials. The 2-flute spiral design with a regular helix and tapered web supports efficient chip evacuation, and the coolant-through construction allows internal coolant delivery directly to the cutting zone. This bit is sized for precision work, carrying a diameter tolerance of +0 to -0.022 mm. It is installed and used by machinists and tool-and-die professionals working with CNC machining centers, drill presses, and manual lathes.

The OSG 8692780 is rated for use in steel, alloy steel, cast iron, titanium, and titanium alloys — material group codes P, K, S, and H. The 5xD flute-to-diameter ratio and 63 mm flute length make it well suited for blind hole drilling, cross hole drilling, and self-centering operations in production and job-shop environments. The straight-cylindrical shank with an 8.00 mm shank diameter seats securely in standard drill chucks and collet holders without modification.

Key Features

• Solid carbide construction provides rigidity and heat resistance in hard and abrasive workpiece materials
• EgiAs coating reduces friction and wear, extending service life in steel and titanium alloy applications
• 140-degree R-thinned point improves self-centering and reduces thrust force at drill entry
• Coolant-through design delivers cutting fluid directly to the tip for effective heat and chip management
• 5xD flute length ratio supports deeper holes without excessive pecking cycles
• Straight-cylindrical shank fits standard ER collets and Jacobs-style chucks with 8.00 mm bore capacity

Compatibility

Designed as a high-performance replacement-grade jobber drill bit for CNC machining centers and drill presses requiring an 8.00 mm straight shank, 7.8 mm cutting diameter, and coolant-through capability in ferrous and titanium workpiece materials.

Installation Notes

Installation is performed by machinists or tooling technicians. Before changing tooling, confirm the spindle is fully stopped and the machine is in a safe state per shop lockout/tagout procedures. Seat the straight-cylindrical shank fully in the collet or chuck and verify runout before beginning a production run. Coolant-through bits require a coolant-through spindle or toolholder to realize the full benefit of the internal channel design.