Needs air compressor with flow 35-60 l/min / 1.25-2.00 cubic ft/min. Cutting capacity 1.2”. Weight of shear 1.6 lbs. Pressure 100-210 psi. Except for the modification of the air admission valve, this pruner is the same as the F70 model. The speed of the bad slicer corresponds to the amount of pressure applied by the operator to the activating trigger.