Clamp-on Bushing Tool for Bergeon is an economical clamp-on bushing tool to use with Bergeon reamers. This is not a Bergeon tool. This clamp-on bushing tool reams bushing holes perpendicular to a clock plate by placing the tool on the plate and holding the reamer in the tool and rotating the reamer with an electric screwdriver. Set includes a reamer adapter and bracket. Reamers are not included. Made in the USA.