Bergeon Beading Block - Bergeon Bergeon beading block is a high quality beading block for jewellers. This beading block is designed to be used in conjunction with beading tools. A beading block is designed for reshaping the ends of beading tools. Made of a specially hardened steel, perfectly formed and highly polished. This beading block consists of 40 balls from diameter 0.60 mm up to diameter 1.75 mm.