A blind rivet setting tool (10) includes a front end (2) having an outer support barrel (4), an inner pulling mandrel (6) and a rivet flange contacting face (8). A portion of the outer support barrel (4) and a portion of the inner mandrel (6) are cut away along the length of the tool (10) extending from the rivet flange contacting face (8), to provide a cut-away face (12), a slot (14) extending from the rivet flange contacting face (8) of the outer support barrel (4) and comprising a first section (16) located in the outer support barrel (4) and sized to accept the mandrel of a blind rivet, a second section (18) located in the pulling mandrel (6) and sized to accept the mandrel of a blind rivet and a third section (34) located in the pulling mandrel (6) and sized to accept the pulling head of the mandrel of the blind rivet is formed along the length of the barrel (4) and pulling mandrel (6), open to the cut-away face (12) of the barrel (4) and pulling mandrel (6) and retaining means (20) is provided to retain a rivet in the slot (14).