My new Black and Decker Model MM275 electric plug in mulching lawn
mower sends quite a high frequency, low power vibration through to the
handle. My last electric had no vibration (not a mulching mower) at
all. What could the cause of this be? Is it possible that this is
just part of the design of a mulching mower?

http://www.blackanddecker.com/Produc...ProductID=2504

JS