This is a heavy-duty ratchet scaffold spanner from Neilsen, designed for demanding work. It features a 21mm size, a 7/16" Whitworth fitting, and a 12-point swivel head for enhanced maneuverability. The spanner is constructed from hardened steel for durability and includes 21 teeth for reliable grip. It is ideal for scaffolding and general construction tasks where a robust and efficient spanner is required. Neilsen provides professional service, product support, and a VAT invoice with every order, along with 60-day returns for unused items.