LOKRING TOOL - MSAWorld.com

Lokring Connector Size and MaterialThe tolerance fit generally built into Lokring connectors is as follows.•Lokring capillary tube connectors have a tube O.D. tolerance of plus or minus0.1 mm & come in sizes 1.6, 1.8, 2, 2.2 and 2.5mm.•The most popular sizes for US appliances are 1.8 and 2mm.•If the O.D. measurement of the capillary tube falls between 2 sizes try thesmaller size connector 1 st . “fit doesn’t fit”. Then use the smaller connector if itfits over the tubing.•The tolerance for connector sizes 3mm thru 11 mm is plus or minus 0.2 mm•Example 7.8 to 8.2 O.D. uses a 8mm Lokring connector 8.3 to 8.7 uses a 8.5.•Lokring connectors for appliance repairs come in common sizes 3mm and largerevery 0.5mm including reducer type connectors.