Can anyone give me any information conerning the company Kontes (I think) who sell the little hand held 'motors' used with the little blue homogenisers for use in 1.5 mL Eppendorf tubes. I know a common-or-garden hand held electric drill can also be used but I am more interested in the Kontes equipment Thanks Peta Bonham-Smith bonhamp at duke.usask.ca