Typhoon 10 self-rotating nozzles from NLB Corp. can clean pipes and tubes as small as 1/2 inch in diameter. The RPN1506 operates at pressures up to 15,000 psi and the RPN2006 at up to 20,000 psi. Both rotate at 7,000 rpm with a maximum flow of 6 gpm. They are precision-machined and coated with titanium nitride for long life. They come with cutting/cleaning or polishing heads, or with a universal head that serves both purposes. 248/624-5555; www.nlbcorp.com.