4" FLAT BASTARD FILES
Used by machinists, machinery builders, ship and engine builders, repairman and others who require rapid removal of metal
Rectangular in cross section and taper slightly toward the point in width
Double-cut on sides, single-cut on edges
Available in American pattern with 3 degrees of coarseness: bastard-cut (very coarse), second-cut (med. coarse), and smooth (fine)