CETS buys scrap carbide for recycling. We buy used / scrap inserts boring bars, rings, drills, end mills, round tools, and sludge. Scrap carbide must be clean, and free of foreign materials. All carbide is recycled in the USA. * Please call or email for current scrap carbide prices. May 16, 2016. Currently we are paying $5.50 to $6.50 per pound.