566675 A1100EVR Collar Drill Fixture Tools & Testing Equipment - 566675 A1100EVR Collar Drill Fixture The 566675 Drill Fixture is used to accurately drill the rivet holes on the top drop tube for the Emco Wheaton A1100EVR collar assembly. Sales Literature Cutsheet 566675 A1100EVR Collar Drill Fixture 566675 A1100EVR Collar Drill Fixture application