Abstract: A pipe spinning apparatus connected in a drilling string for threadably connecting or disconnecting joints of pipes is provided. The pipe spinning apparatus includes a rotatable stem for connecting and disconnecting members, at least one pneumatic, turbine motor rotatably connected to the stem and a throttle control functionally connected to the turbine motor for variably controlling the speed of rotation of the stem. The rotational speed of the stem can be controlled through a range of revolutions per minute (rpm) depending on the air pressure and flow rate provided. The speed may be varied from 0 rpms to at least 500 rpms. A desirable range of operation is from 0 to 200 rpms. This ability to control and vary the speed of the stem greatly increases the safe operation of present kelly spinner over the prior art kelly spinners.