"FRD-8 series are ideal drills for drilling capacity: 8mm (5/16""), 10mm (7/16"") and 13mm (1/2""). The series is provided with thread type spindle. The range is defined by 3 basic models with stall torque from 5.9Nm (4.4ft.Ib) to 20 Nm (14.8ft.Ib). The series provide PT and NPT inlet."