Superior Electric K40 Japanese Aftermarket Carbon Brush set Replaces Makita CB-303 194996-6 191963-2 (2/pack) Fits most of the Makita tools Replaces Makita (CB303), 194996-6, 191963-2 Material: Japanese Toyo TANSO Carbon Dimensions (LxWxH): 0.66 inch x 0.43 inch x 0.20 inch