Bosch GSB 18V-28 (=GSB 18V-55) Trapano combinato professionale senza fili solo strumento nudo
GSB 18V-55 is the newer brushless model replacing the older GSB 18V-28 lineup, with improved motor efficiency and durability. Chuck performance, min/max: 1.5 / 13 mm. Battery type: Lithium ion. Torque setting: 20+2.