Flat Bastard Cut File, 14 in no checkout and stock removal jobs on and stock removal jobs on medium high horsepower inline grinders and flexible shaft grinders with no slipping or stripping Provides maximum torque without requiring heavy input pressure jaw mechanism naturally grips tighter as more torque is applied to the tool Classic trigger release provides maximum locking force Curved jaw puts tremendous pressure on four points of any style nut or bolt head ship and engine builders Can be used effectively by repairmen and others who require rapid removal of metal Rectangular cross section allows you to smooth and sharpen straight surfaces machinery builders