QMPRO Channel Locks 2
Guaranteed to fit Janome (Newhome) sewing machine models:
QMPRO18 Quilt Maker Pro 16, QMPRO18 Quilt Maker Pro 18, QMPRO20 Quilt Maker Pro 20
Channel locks will prevent your machine from moving along one axis. Use them when you are looking for completely straight vertical or horizontal lines.
Here is a video that shows how to use these channel locks.