Have that tool -- just never used it. Use to use the marking/cutting on the sides of the June Taylor Square Up. Recently I tried Jenny Doan's method of pressing the squares on the diagonal and really like that method. Some-where I acquired a sewing machine foot that has a little point guide in front of the foot. I just keep that point on the crease and my needle sews slightly to the right for a scant 1/4" SA. I love that foot but have no idea where it came from. I think maybe it was in the accessories I received when I purchased my late aunt's New Home L372.