Modification of the David-Kopf puller (DKI 700 C) for the preparation of multi-barrel glass micropipettes

The DKI vertical pipette puller (Model 700 C), which is normally used to make single or multi-barrel glass pipettes out of prepulled blanks, can be modified for the construction of a variety of multi-barrel pipettes. The use of the modified pipette puller is described for the production of small diameter 4-barrel pipettes.