J.B engineering offers jb-18 jack hammers-breakers & drilling accessories. These hand drilling machines are technically and skillful designed. Weighting 23.9 kgs it can drill 25mm to 42mm up to the depth of 6.4 meter- both vertical and horizontal.
It comes with following technical specifications-
Pneumatic air connection = 3/4inches
Air requirements at 90 psi cfm= 100
Rpm = 215
Impact pm =2100.