Adapter Spex multiple-sample holds four vials 3/4 inch (19.1mm) diameter for simultaneous running in 8000M Mixer/Mill, suitable vials include SPEX SamplePrep 3118, 3127, 5004 and 6133, vials run at one time should be same length, can be used in 8000D Mixer/Mill with 3118, 5004, and 6133 vials, to use 3127 vials in 8000D, 8012 adapter is also necess