These 3-prong extension clamps are constructed of pressure die-cast zinc alloy and are chrome-plated.
Clamps open to about 3″,
They have a recommended maximum grip size of about 2.25″, and feature double keyed spring-type adjustment screws.
Boss head clamp can swing freely, is lockable at any angle up to 360°, and can be used with rods up to 19mm. |