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The Avenger C345BK Barrel Clamp with T-Knob was developed using feedback from experienced users and the new manufacturing techniques available for Avenger. Barrel Clamp has many applications for this black aluminum alloy. It has a removable spigot (5/8), "and a sensor for junior (1 1/8"). It has a mechanism for locking the T-Knob and a security cord.
That clamp is extremely strong. It has a load capacity of 1323 lb (600 kg), mainly due to gravity casting which prevents the creation of any kind of air bubbles within the casting material. It attaches between 1.65 "and 2.04" (42-52 mm) in diameter to any tubing.