Blackdecker alligator powered loppers blackdecker gk1000 gb the alligator powered lopper from blackdecker offers the cutting performance of a chainsaw but in an easy to use form the patented jaws protect the user from the moving cutting chain whilst the easy oil facility powerful motor and lopper style dual switch handles mean it is an easy tool to use the gk1000 has a large cutting capacity which makes light work of small branches up to 100mm in diameter blackdecker gk1000 alligator