If you are purchasing an Arbortech Mini Grinder or Arbortech Power Chisel and plan to keep the power unit (angle grinder) dedicated to that particular product without dismantling it, then the best way to go is to purchase the product complete with an Arbortech Angle Grinder.

If, however, you plan to use your power unit (Angle Grinder) for more than one purpose (other Arbortech tools or as an actual grinder) then you should consider purchasing a Bosch Angle as shown below.

Pop recommends this Bosch 1375A Angle Grinder for the serious minded or professional.  You can mount the Arbortech Mini Grinder, Industrial Pro Kit, Woodcarver Pro 4 Kit, or the Imperial Size Power Chisel to this quality angle grinder straight from the package without any special adaptors.

This Bosch 1375A grinder has many features including a 6amp motor, slim styling, perfect balance, and of course features the high BOSCH quality standards.  It has a 5/8" spindle.