What size ST and SF would you recommend?........900 and 600 maybeHi mate, the ST is PVC only blade designed to flatten and rule off.
The SF is composite design PVC, with 55mm x 0.3mm stainless steel tip for fine finishing and polishing.
The ST reduces surface moisture which allows you to complete the initial stages of the work much quicker.
The SF then gives a smooth seamless finish.
Used as a System you can increase your out output; but most importantly reduce the unnecessary strain on your body ;-)