Heavy Duty Top and Bottom Feed Backstitch Sewing Machine (lengthening)

SPECIAL FEATURES& APPLICATIONS

Has 250mm long arm.

Equipped with an extra large  horizontal rotating  hook and bobbin  for use with  thick threads.

Upper and lower drop feed mechanism with reverse stitch ensures perfect and fine lockstitches on such thick materials from 3mm to 12mm in thickness without any slippage of the upper and lower pieces of material.

Specially designed for extra heavy work such as thick leather,tarpwulins, horse rugs,harnesses,vehicle upholstery,shade sails,water-proof cloth,travel bags,suit cases,thich cloth and other bulky material.

规格Specifications: