tooth floater
n.β Β«Jim Johnson of Sacred Heart has been a horse tooth floater for 15 years. He uses something that looks like a giant nail file called a “float”βthe name used years ago for leveling or planing tools. He swears it doesnβt hurt the horse.Β» ββTaking a license to work” by H.J. Cummins Star-Tribune (Minneapolis, Minnesota) Sept. 22, 2005. (source: Double-Tongued Dictionary)