Osg 8704680 Taper Length Drill Bit 6.8 Mm Solid Carbide

Product Description

The OSG 8704680 is a taper length solid carbide drill bit engineered for precision hole-making in demanding industrial and machining applications. Built to Series 6520 specifications, this bit features a 140-degree split point geometry with X-thinned web for reduced thrust and cleaner entry without a center punch. The EgiAs coating enhances wear resistance and heat dissipation, extending tool life in ferrous and non-ferrous materials. With a flute-to-diameter ratio of 8xD and coolant-through capability, it handles deeper holes with consistent chip evacuation. Machinists, tool-and-die techs, and production drilling operators are the typical users.

This drill bit is suited for CNC machining centers, drill presses, and multi-spindle setups where tight-tolerance holes and extended reach are required. The 6.8 mm diameter is a common tap-drill size for M8 threads, making it a frequent choice in metalworking, aerospace component production, mold and die work, and general precision fabrication. The straight cylindrical shank seats securely in standard ER collet chucks and drill chucks accepting 8 mm shanks. Coolant-through design supports both through-spindle and external flood coolant setups in production environments.

Key Features

• 140-degree point angle with X-thinned web reduces entry thrust and eliminates pre-drilling in most materials
• EgiAs coating provides elevated wear resistance and thermal protection for extended tool life
• Coolant-through construction supports through-spindle coolant delivery for deep-hole chip evacuation
• 8xD flute-to-diameter ratio enables deeper reach compared to standard jobber-length bits
• Right-hand spiral flute geometry promotes efficient chip clearing in through and blind holes
• Straight cylindrical shank with 8 mm shank diameter for compatibility with standard collet and drill chuck tooling

Compatibility

Designed as an OEM-spec replacement and standard production drill for use in CNC machining centers, drill presses, and multi-spindle equipment accepting straight cylindrical shank tooling with an 8 mm shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully in the collet or chuck and torque the retention mechanism to the machine manufacturer's specification. Verify coolant-through passages are clear before engaging through-spindle coolant supply.