Hoop Key Doo BE102 Tightener Tool for Most Bernina Embroidery Machine Hoops with Tension Screw, Not Clamps
The HoopKeyDoo was developed to assist you while loosening and tightening your Embroidery Hoop thumb screws. The HoopKeyDoo is compatible with all Bernina Embroidery Hoops - excluding the Jumbo Hoop. Your fingers will love these!