Replying to William N Pritchard: We do not recommend using the HPOG wand and brushes in a drill. The wand is specifically designed to have air and/or water sot through it under pressure. If you want to use a drill and some solvent, we recommend using a cleaning brush.
Check out these links for more information:
Can these be used with a drill & turned at low speed, no water or air, just some solvent to wash the crud away.
How much is a set of this HPOG 1000 cleaner ? What is included in a set of HPOG1000q