The Tractor Beam works by using a TARDIS's Vortex Drive to generate an anti-gravity spiral and is capable of countering the effects of a black hole at short range. The tractor beam is capable of exerting enormous amounts of gravitational energy in 5 second bursts. It is even capable of pulling planets around. It should be noted that on full power this device will cause serious distortion of a TARDIS's interior spatial dimensions.