Kuike Automatic Coverstitch Bottom Hemmer equipped with PEGASUS W3662P-35B, makes the knitting T-shirt hem process can be completed in a one-time sewing processing. Which adopts 2 needles 3 thread or 3 needle 5 thread stitch mode, automatic trimming, electric or pneumatic automatic size control, automatic fabric guidance, and folding design, automatic stacker of the device, one operator can run 2-3 machines at the same time, which can greatly improve the sewing efficiency and stable quality of the hemming process.