6 1/4" (16cm) Knife Needle File cut 2 Swiss Pattern is a knife file, total length is 6 1/4" with a cutting portion measuring 2 3/4". Double cut, the top edge of the knife (widest part) is safe (smooth), tapers to a point. The largest height of the file is 5.3mm, the thickness at the widest part of the file is 1.60 mm. Cut 2.