Mga jorge a new discovery akong nahibal- an about Carbon brass replacement, We can replace it with CB coming from Makita power tools. just make sure na yung bronze color na CB ang bibilhin nyo and it will cost you around 50 to 100 pesos only. Konting sanding lang to customize the size of the original CB sa motor nyo. Don't be agitated in selecting the kind of CB you want to buy 2 klase yan mga jorge may grey color at yung bronze color. Mahina yung grey better buy the bronze color one. Mas mura na yan sir compared to the original and it will cost you around 400 to 500 pesos..... FYI.