Shank Adaptor, Drilling Tools

Shank adaptor or shank adapter, the task of the shank adapter is to transmit rotation torque, feed force, impact energy and flushing medium to the drill string.
The shank adapters from Pro-drill are therefore designed to withstand the high impact power of modern
rock drills and made from specially selected material which also is hardened through carburizing. Around
300 different shank adapters suitable for different rock drills are currently available from Atlas Copco series drifters, Tamrock series drifters, Garden Dever series drifters etc.

Male shank adapters are ideal for drifting, tunneling & extension application where high bending stresses
are present, Female shank adapters are used when the drilling space is limited and the total feed length is important.

We offer both internal and external flushing options.
? Internal flushing uses a water tube that fits through the center of the drill and into an o-ring seal in the
end of the shank to transfer flushing into the drill string.
? With external flushing, holes or a slot are required in the side of the shank adapter. These line up
between seals inside the front head or water box of the rock drill when the shank is installed. Flushing
medium is supplied directly to this device and is introduced into the drill string through the shank.

The shanks for hydraulic drills and some pneumatic drills have external or front head flushing. Hydraulic
shanks generally have at least a 5 to 14-spline configuration, and pneumatic shanks tend to have internal or through-flushing and can generally be identified by their lugs or 4-spline configuration.