Bahco 4-153-08-1-2 25 and 41 TPI Homeowner's File, Ergo, 8-Inch Overall length of 8-Inch File has both double and single cut Double cut for rough sharpening of edges of spades, hoes, mower blades, and axes Single cut is for fine sharpening of edges on same above tools and also knives and scissors File is flat and parallel with two flat, uncut edges