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The SGS 66609 is a taper length solid carbide drill bit engineered for high-performance drilling in demanding metalworking and machining applications. Built to DIN 6537 standards, it features a 135-degree split point and a Ti-NAMITE-X (TX) coating for extended tool life and reduced heat buildup. The 3.3 mm cutting diameter is paired with a 5.99 mm straight cylindrical shank, giving it an 8xD flute-to-diameter ratio that supports deeper hole drilling while maintaining rigidity. Web thinning reduces entry force and improves chip evacuation. Licensed machinists, tool-and-die makers, and CNC operators are the primary users of this bit.
The SGS 66609 is suited for universal material applications including ferrous and non-ferrous metals, stainless steel, and hardened alloys. Its micrograin carbide construction and TX coating make it appropriate for use on CNC machining centers, drill presses, and manual mills where consistent diameter tolerance and long run life are required. The 8xD flute length accommodates deep-hole drilling scenarios common in precision manufacturing and production environments.
Designed as an OEM-style replacement and standard production drill bit for CNC machining centers and drill presses that accept a 5.99 mm straight cylindrical shank tool in the 3.3 mm diameter range.
Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the shank fully within the collet or chuck to the specified grip depth to prevent pullout during operation. Verify spindle speed and feed rate are set appropriately for the workpiece material before engaging the cut.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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