Osg 8702850 Solid Carbide Jobber Drill 8.50 Mm

Product Description

The OSG 8702850 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding materials. It features an 8.50 mm diameter, a 140-degree point angle with R-thinned web geometry, and an EgiAs coating for extended tool life and reduced friction at the cutting edge. The overall length is 128.00 mm with a 68.00 mm flute length, giving a 5xD flute-to-diameter ratio suited for consistent chip evacuation. This drill is built for production environments where tool stability and hole quality matter. Machinists, toolroom technicians, and CNC operators in metalworking shops are the primary users.

The OSG 8702850 is intended for drilling steel, alloy steel, cast iron, titanium, and titanium alloys. It is rated for blind hole, cross hole, self-centering, and through-hole drilling applications. The drill supports coolant-through delivery, making it well suited for deep-hole work and high-speed machining centers where internal coolant is available. Its straight-cylindrical shank measures 10.00 mm in diameter, compatible with standard collet chucks and drill chucks on machining centers and drill presses. The Series 6510 designation places it within OSG's high-performance carbide drilling line.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive workpiece materials
• EgiAs coating reduces built-up edge and extends tool life in steel and titanium alloys
• 140-degree point angle with R-thinned web for improved self-centering and reduced thrust force
• Coolant-through capability supports high-speed and deep-hole drilling operations
• Tapered web configuration and regular spiral flute for consistent chip flow
• Diameter tolerance of plus 0 to minus 0.022 mm for tight hole-quality control

Compatibility

Suitable for use in machining centers, CNC drill presses, and manually operated drill presses equipped with a 10.00 mm straight-cylindrical collet or chuck. Rated for primary workpiece material codes P, K, S, and H, covering steel, cast iron, titanium, and hardened materials per ISO material classification.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician following standard machine tool setup procedures. Ensure the spindle is fully stopped and the machine is in a safe state before loading or changing the drill. Seat the straight shank fully and concentrically in the collet or chuck and verify runout before production cutting. When using coolant-through capability, confirm that the machine spindle and toolholder support internal coolant delivery before pressurizing the system.