BELL / MOUTHPIPE CLAMPOur Bell Mouthpipe Soldering Clamp is designed for clamping trumpet, cornet, and trombone bell pipes and mouth pipes. Heavy duty, non corrosive design uses a 5 16 (7. 92mm) diameter stainless steel threaded shaft that resists bending when under tension. The clamping arms are machined from T6 aluminum and are profiled to allow clearance and access around braces. The most outstanding feature of our clamp is the unique pivoting head which allows the