The Schacht bobbin winder clamps to a table surface with a built-in clamp, with the shaft of the winder running parallel to the table edge. The metal shaft, riding in a self-lubricating bronze bearing, is driven by the plastic belt around the wooden wheel. The tapered shaft will take the following:

• Schacht, Leclerc, and Harrisville bobbins
• Schacht, Bluster Bay, and Leclerc pirns
• Leclerc plastic spools (but not cardboard spools)