ER-40 collets are to be used with the ER-40 Fixture and not tool holders. For tool holder collets please purchase ER-11 collets. The second photo shows the collet in the ER40 Collet Work Fixture.
ER-40 collets are to be used with the ER-40 Fixture and not tool holders. For tool holder collets please purchase ER-11 collets. The second photo shows the collet in the ER40 Collet Work Fixture.