Barrette Needle File Great for Metalsmiths, Metal Working & Filing This is a new #4 cut barrette needle file This file can be used for filing flat surfaces, corners, keyways, dovetail ways, gear teeth and deburring Has little or no clogging, a light knock is enough to loosen any clogging Highly resistant to corrosion Made in Italy It measures approximately 6 1/4" x 3/16" (159 x 5 mm).