The ScrewKeyDoo is the perfect tool for loosening and tightening the needle clamp screw on Bernina Sewing Machines. The ScrewKeyDoo is larger and more comfortable to hold than the small gray screwdriver that came with the machine, therefore making it easier for those with hand ailments to tighten and loosen the screw. Compatible with all 7 and 8 series models.
For other Bernina models, see the other ScrewKeyDoo sold below. Also check out the HoopKeyDoo for Bernina embroidery hoops; no more sore fingers!
