... sewing heavy weight materials such as safety belts, luggage, tarpaulins, tents, book bindings, etc. This machine ... purses, etc.With powerful unison feed, the machine can sew accurately and easily several sheets of ... sewing.The machine incorporates a built in bobbin winder, which can be reached with ease during sewing. Max.Sewing Speed800 s ... , Unison-Feed, Extra Heavy Duty, Lockstitch Sewing Machine