Review on LNKA Upper and Lower Knife Set for Singer, Pfaff, and Babylock Serger Machines (14CG754, 14SH654, 14SH644, 14SH744, 4762, 4772) by Carol Miller

I ordered this to replace my Singer 14SH654 serger as it is listed as compatible with these blades. While the bottom knife was fine, the top knife was significantly shorter than my machine's original blade. This creates a gap of approx. 4-5 millimeters between the blades during installation, so nothing is cut. Very disappointed after waiting 2 weeks to finally receive them (the first order I placed got lost in the mail) only to find that they don't work.