Buddy, this is what I found. If I was you I would contact mark, this is the one he likes for top
polishing.
Manufacturer Information for the Metabo we9-125
Grinding disc dia.: 125 mm No-load speed: 3,000 - 10,000 rpm Rated input: 900 watts Output power: 510 watts Speed at rated load: 7,500 rpm Spindle thread: M 14
With dust-sealed Metabo Marathon motor for extra-long service life thanks to Metabo winding protection grid and powder-coated field winding Die-cast aluminium gear housing - robust and wear resistant Auto-stop carbon brushes Metabo S-automatic safety clutch - to protect the user against kickback if the disc jams (e. g. during cutting) Spannerless guard adjustment permits adaptation to suit different jobs in a matter of seconds Metabo Quick: spannerless rapid tool-changing - quick, convenient and safe Vario-Constamatic (VC) full-wave electronic speed control: for
grinding at maximum speed and for speed stabilisation even under load Extra-high torque of 2.5 Nm for powerful
grinding and fast cutting