I need some advice before buying a whetstone grinder

[gettingold]

I'm looking to buy a whetstone grinder to sharpen chisels / plane blades and maybe my lawnmower blade so I thought about buying a Clarke whetstone grinder but I didn't know what model was the best so I contacted machine mart and they didn't have a clue so I contacted clarke tooling and they said the only difference is the size of the wheel but isn't the motor less wattage on the more expensive machine.

Clarke CWS250.
Motor: 60W, 230V
3-position switch (Forwards, backwards, off)
Adjustable Wheel speed: 30-150rpm
Grinding Wheel: Ø250x50x12mm
Leather Honing Wheel: Ø200x50x12mm.



Clarke CWS200B.
Powerful 180W, 230V induction motor
200mm diameter grinding and leather honing wheels
Wheel dimensions (dia x Width x bore):
Grinding – 200dia x40 x12mmm
Leather honing – 200diax30x12.5mm

 

[bourbon]

Did you phone Machine Mart customer services or tech? Big difference. The larger wheel has more momentum when up to speed and will need less power to keep it turning. Obviously. You let the tool do the work and not lean on it, or you will stall it.