Double-cut teeth have two sets of rows cut in opposite directions. Nicholson - 05194N Hand File Boxed , American Pattern, Double Cut Half Round Coarse 14 Length Pack Of 1 Single-cut teeth have single rows cut diagonally across the width of the file. Swiss pattern files have eight coarseness grades, from 00 (coarse), 0 (medium), and 1 to 6 (fine to finest), offering a smoother, more precise finish than equivalent American pattern files. Half-round shape has one round side and one flat side for use on curved and flat surfaces Nicholson manufactures hand tools and power tool accessories. The Nicholson coarse grade half-round hand file is 10 long and has one flat side with double-cut American pattern teeth and one curved side with single-cut American pattern teeth for use on flat and curved surfaces. Fine, also known as smooth cut, provides the smoothest finish. American pattern files have three coarseness grades. 10" Half Round Double Cut Smooth File - Boxed The Nicholson 05194N Hand File offers a reliable tool for shaping and smoothing metal surfaces. It features a double cut design for efficient material removal. This file is half-round with a coarse grit, measuring fourteen inches in length, making it suitable for various tasks in metalworking and carpentry American pattern file for non-precision material removal Crescent Nicholson 8 Half Round Double Cut Smooth File - Boxed 04960N Medium, also known as second cut, offers average material removal and finish quality. Double-cut teeth on the flat side for rapid removal of material and single-cut teeth on the round side for sharpening and deburring
