since 1974 comet tool has offered high-quality precision machining and deep-hole drilling in our modern facility in hopkins, minnesota. we craft precision parts from a variety of materials, specializing in working with nickel alloys such as stainless steel, inconel, monel, and hastelloy; and quality assurance is guaranteed. we cater to medical, electronics, defense, aerospace, industrial controls, machinery, heavy equipment, and other oems (original equipment manufacturers)clients who demand high precision, quality, and competitive pricing.