I home brew and used this on my stainless steel pot to install the Heavy Duty 1/2" Weldless Bulkhead w/ Stainless Steel Valve, the Bayou Classic 800-770 Brew Thermometer, on my stainless steel 42 qt pot. If you drill a 1/8" pilot hole, take it nice and easy, this bit works like a champ. I used liquid dish soap as a lubricant / cooling agent, and finished the holes with a file. I had absolutely no problems with this tool. I'm sure there are better quality bits being offered, but for this price point and free shipping, who's complaining?