|For HQ Fusion, HQ Infinity, HQ Sixteen (standup)/HQ Avante| Every quilter wants to finish more quilts. Every tool in a quilter’s studio should be there to help design, create, add beauty and finish more quilts. The Handi Quilter Electromagnetic Channel Lock is a tool that does just that. Our channel locks are engineered to stitch straight lines wherever the quilter needs them. Quilters can also use the channel locks to help load quilt tops squarely onto the frame and to quilt piano keys quickly and easily. Electromagnetic Channel locks integrate into the HQ Fusion using a control box and magnets that lock onto thin plates of steel running the length of the frame and also the carriage. This enables quilters to stitch perfectly straight horizontal and vertical lines by manually using the attached control box. Carriage NOT included.