MJS Company is a leading manufacturer in the field of "Bevellers, Chamfers, Cutting tools, Grinders". Founded in 1968, we have focused on the precision machining of various gears used in motor and vehicle industries. Chamfo, a portable one-touch beveller (patented in Korea and China and pending in patent in 16 countries such as Japan, USA, Germany, UK, Netherland, Italy, India, etc), is the most outstanding tool ever. Our beveller can be applied to any straight-lines, curved edges, corners. - Easy control of bevel depth without loosening - Simple operation on electricity or air pressure Manufacturing of the Gamma Irradiation System & related products used for calibration of the radiation protection devices and dose meters is another field we are involved in. We have developed several precision primary and secondary standard irradiators in cooperation with KRISS(Korea Research Institute of Standards and Science).