BT Dori Block – The only original Dori Block for 50.8mm (2″) Profiles

There is only one original Dori block on the market and this is it. BT Engineering are the original Dori block manufacturers have been making the best profile clamps and accessories in the world since 1967!

Engineered to hold two string lines running both ways on 50.8mm UK profiles/box section. Invented by a customer call Dorian, BT’s Dori Block is now a staple in the industry.