5pc Pipe Nipple Extractor Set Designed to free pipe nipples and studs from fittings without cracking or marring. Made of durable heat treated steel and sand blasted for resistance to rust and corrosion. Sizes : 1/8in. | 1/4in. | 3/8in. | 1/2in. | 3/4in Metric : 3.2 | 6.4 | 9.5 | 12.7 | 19mm