We produce many types of massory drills and electric hammer drills,
e.g: J1 type for chamfer electric hammer drill, J2, J3, J4 type
chopping bit for drilling the equipment installation holes in
brick, stone and concrete wall, J5 type for rotary rig bits used to
constructional engineering, quarrying and tunnel boring, J6 type to
mount the step type of shaving bits, J7 type to mount starters.