Sugino UC-21U Synchro Tapper Controller For Model SBT-H/L Tapper New This is a new (no box) Sugino Synchro Tapper Controller. Model#: UC-21U Volts: 440 For use with model SBT-H/L Tapper. The electrical diagram for this unit can be viewed here: http://pdf.directindustry.com/pdf/sugino/synchro-tapper/Show/28709-34947-_8.html GIBUYS Item No 5338%%