Man , that's an old one for sure . That doesn't have the aluminum closer wheel on it or is it just not pictured ? I have owned the flex chucks for all my machines in the past . No problems ever with them . I have a D1-8 and a L0 mount right now with 2 full sets of flex collets + extras . Matter of fact , they are on the bay now . I need to pull the L0 off and bring it into work for the Colchester . The collets are readily available on Ebay , but make sure they are in good shape , and get the plugs if you can .