Air operated ram applies pressure to the caliper piston, while the handle is rotated by hand Magnetic head Easy to use - works on standard workshop air supply Reversible - works on both RH and LH applications Can be used on Wind Back and Push Back pistons Supplied with nine adaptors which cover a wide range of popular vehicles (applications list included) Also supplied with 3/8" converter to use with adaptors from manual kit (03619200 - see related product)Please note that Sykes-Pickavant may require additional time to assemble, calibrate or source certain products/components from their production facilities. Once you have placed an order we will always notify you if a delay is applicable, however if you require your order to be sent urgently we recommend that you call our customer service team who will be happy to advise whether we can meet your specified time frame.