Hello everyone! As we all know, a nail file is a tool used to gently grind down and shape the edges of nails. Nail files may be emery boards, ceramic, glass, crystal, plain metal files or metal files coated with corundum. The surface of a nail file is referred to as its grit . The smaller the grit number is, the coarser a nail file is and vice versa. I’ve put together a list of nail file types available to help you select the best nail file for your nails. Emery board Emery boards are the most accessible nail files. Their biggest downfall is that they cannot be cleaned as their base is cardboard. Emery boards are available with different grit sizes. The coarser side is used to file down the nails, whereas the finer side is used to shape them. Double-sided nail file These nail files have two grits, a lower and a higher grit. A double-sided emery board with a 180/240 grit , is strong enough to remove length but will not damage your nails. Anything less than 180 grit could da