For left and right hand threaded pistons. Suitable for most 3/8"D wind-back adaptors and pin type adaptors.A pneumatic/air tool for brake caliper piston rewind.Suitable for pin drive or 3/8"D.For left and right handed threaded pistons.Time saver.Full adaptor range available. Supplied with a 3/8"D to 2 pin magnetic adaptor to fit adaptors in 3991.
