Stapling device with exchangeable driving tool

The invention relates to a device for stapling printed products， preferably automatically， comprising a stapling head for driving a staple through a printed-product back and a bender for bending the open ends of the staple. Said device is characterized in that the stapling head has a modular design， wherein the stapling head comprises a driving tool ( 1) and a driving-tool holder (2) for equipping with the driving tool， and wherein the driving tool can be fastened to the driving-tool holder in an exchangeable manner， e.g.， by means of locking bolts (3) fastened to a crossmember (4) or by means of a groove (5)/feather-key connection. The invention further relates to a corresponding stapling head.