EM KMR2 glass knifemaker produces 45° glass knives from 6.4, 8, and 10 mm thick glass utilizing the balanced-break method. This method begins with a standard 400 mm long glass strip in any of the three thicknesses and continuously breaks the strip into equal halves. You then have a number of flat-sided squares perfect for making 45° knives suitable for light and electron microscopy applications.