Compatible with HILTI TE70, TE80, TE40 power tools, used widely for various of power tools and electric motors, such as rotary hammer drill, circular saw, cut-off saw, angle grinder, some mixers and etc, suitable only for AC power motors. The brush measures 7x12.5x26mm, please measure your old brushes height x width, the length can be different (because of the wear), but the hxw must be the same. With automatic stop function, once the carbon brush wear indicates that the carbon brush needs to be replaced, the machine will stop working. Designed to replace worn or damaged carbon brushes for consistent motor performance. Make of good quality material, long service life, high strength and durability, ideal replacement for your old or worn part., Manufacturer: YINETTECH