... ,Drilling capacity: 26mm 3,No-load speed: 750rp Electrical Hammer Drill drill bosch hammer Rotary Hammer J1Z-DD-26LY SpecificationsItem NO J1Z- ... (BLACK&DECKER10mm, 10mm,10mm, Hitachi13mm,08-13,dragon 13mm),Project drill(90,200),Electric Hammers{BOSCH20mm,light style BOSCH24mm, BOSCH24mm,26mm ...