Janome MyLock 454D: light 6.1 kg, easy rolled hem

Listing highlights

Janome describes a 4 thread overlocker that sews with 3 or 4 threads and can also do flat locking and rolled hemming. Threading aids include colour coded guides, a reference chart inside the front cover, slide-in thread pre-tension and an easy lower looper threading mechanism.

Stitch length adjusts from 1 to 4 mm, the presser foot has a tension release, the rolled hem conversion is described as easy, and the upper knife retracts with a push release. It uses Janome ballpoint HAx1SP needles. Model year is given as 2024.

Setting it up

Slide-in pre-tension means the thread drops into the tension discs as you guide it, rather than having to be wound around anything. Combined with colour coded paths and a chart behind the front cover, that should shorten the first threading session. The retractable upper knife is handy when you want to overlock a fold or make a flatlock seam without trimming.

Note the needle type: HAx1SP ballpoint needles are listed, so keep a pack of the right type to hand rather than using standard sewing machine needles.

Limits to be aware of

Differential feed is not mentioned anywhere in the listing, which matters for knits and fine fabrics. Ask the seller to confirm it before buying. There is no 2 thread option, and speed and cutting width are not stated. Accessories in the box beyond the needle type are not listed either.

How it compares

The Janome 8004D arrives pre-threaded from the factory and states adjustable differential feed, rolled hems and flatlock, at a slightly heavier 7.66 kg. The Janome 9300DX lists differential feed, rolled hemming and around 1,500 stitches per minute, and weighs 8 kg. The 454D is lighter than both and gives the most detail about its threading aids.