4234D & WT is an overlock sewing machine for household applications with two needles for four threads and differential feed. In order to improve needlework efficiency the machine is equipped with a wide worktable and additional free arm table. These tables contain a storage box for foot controller, sewing accessories and a dust cover for waste material of thread and cloth. Dual LED working lamps improve lighting at minimal energy consumption and eliminate disturbing shadows. The inverse tapered body shape efficiently reduces the footprint, while the white tinged body emphasizes cleanliness.