Product details : BAHCO 3834-EXT-1 EXTENSION FOR HOLESAWS 11.1MM
An extension is used when the work piece cannot be reached with a normal holder. 3834-EXT-1 for holder -1130, -11152, -11152QC3834-EXT-2 for holder -930, -9100. EXT-2 fits arbor -930, -9100.