For Use With 8.5″ Inserta Clamps Only: If you’re working with round tubing or other curved materials, V-Blocks will help facilitate clamping them directly to our fabrication tables for welding and fixturing. The “V” shape allows you to drop in tubing within a range of diameters, and then clamp down with tools like our Inserta Clamps.
These are needed if you own the 8.5″ Inserta Clamps.