Miller-Colburn bone file 7 1/2" #4 double-ended straight 4.0mm and 5.0mm downcutting serrated ends hexagonal handle

Miller-Colburn bone file supports controlled bone filing.Double-ended design provides two filing options.4.0mm and 5.0mm ends support size-specific bone filing.Downcutting serrations support controlled filing with efficient material removal.Straight ends offer clear orientation during focused filing tasks.Hexagonal handle supports secure handling and resists unwanted rolling.