... .we are factory 2.OEM service 3.sound quality 4.accurate size and long service life PEX CRIMP TOOLS Application:1. Crimping ... the copper ring with PEXCaliber:dia. 1/4",3/8",1/2",3/4",1 ... -43 degree.MOQ:100PCS crimp tools for PEX tube sizing 1/4",3/8",1/2",3/4",1",1 1/4", 1 1 ...