For assembling 8, 12, 13, 16 and 21 mm diameter rods.

• Light, robust design
• Bossheads open out completely enabling them to be secured instantly at the required position on any rod
• Lock into place with a Labomeca® Allen key (optional, 241-0053)

* When 8 mm boss is locked onto the duralumin rod it cannot be moved by a rotational force less than 3 nm.

** When 8 to 12 mm boss is locked onto the duralumin rod it cannot be moved by a rotational force less than 6 nm.

*** When 16 mm boss is locked onto the duralumin rod it cannot be moved by a rotational force less than 25 nm.