bushhammer

bushhammer

(ˈbʊʃˌhæmə)
n
(Tools) a hammer with small pyramids projecting from its working face, used for dressing stone
[C19: from German Bosshammer, from bossen to beat + hammer]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014