Profile: K D N Tools Pvt. Ltd. are manufacturers of engineers' files. Our products include flat files, mill files, all purpose files, hand files, half round files, square files and milled curved tooth files. Our flat files are double cut on both sides & single cut on the edges & taper towards the point in width. This file is used in factories, machine shops & garages because of its ability to work on iron, steel & rapid stock removal from plain surfaces. Mill files are single cut on the sides & the edges taper towards the point slightly. A mill file is similar to a flat file except for the cut, a mill is single cut where as a flat is double cut. It has a wide range of applications, such as sharpening, draw filing, lathe work, finishing metals & general shop use. Square files are double cut on all four sides and taper towards the point in width & thickness. They are designed for filing slots, square holes, keyways & edges & for filing flat surfaces where a heavier section is preferred.