... Matched Nut:SD6/10/16/25-LM -Matched Holder:ER type -SCM-440 material -Heated jaw ZHY CNC ToolsWe are ... customers all round the world.ZHY Hardware Product M And UM Type ER Spanner1.Three ER Spanner: type A, type M, type UM. ... tool holders, to tighten the tool.4.ER A type spanner: ER11A-BS, ER16A-BS, ER20A-BS.5. ... , ER32UM-BS, ER40UM-BS, ER50UM-BS.6.ER M type spanner: ER8M-BS, ER11M-BS, ER16M-BS, ER20M-BS ...