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The CLEVELAND CONTROLS C16606 is a cobalt jobber-length drill bit designed for heavy-duty metal drilling applications. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, this bit handles tough materials including stainless steel, cast iron, non-ferrous metals, and general steel stock. The 135-degree split point reduces walking on entry and lowers the thrust force needed to start a hole. A parabolic flute profile improves chip evacuation, which is critical when drilling deep holes in harder alloys. This is a professional-grade cutting tool suited for machinists, fabricators, and trade mechanics who need reliable performance in demanding drilling operations.
The C16606 is used in general metalworking and fabrication environments where stainless steel, cast iron, and hard alloy drilling is routine. Its parabolic flute geometry and web-thinned split point make it well-suited for production drilling in sheet metal shops, HVAC fabrication, plumbing rough-in work involving metal framing, and electrical panel or enclosure drilling. The straight-cylindrical shank fits standard drill chucks without adapters, making it compatible with both bench-top drill presses and handheld power drills.
Designed as a jobber-length drill bit for use in standard drill chucks accepting a 0.3937-inch straight-cylindrical shank. Suitable for drilling stainless steel, cast iron, non-ferrous metals, and general steel per DIN 338 and ASME B94.11M standards.
Installation of this drill bit requires seating the straight-cylindrical shank fully and squarely in the drill chuck before tightening. Always power down and de-energize any equipment being drilled into before beginning work. Use cutting fluid or lubricant when drilling stainless steel or hardened alloys to reduce heat buildup and extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or dulling is visible.
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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