I was able to find some info check out ARTISANS WEB SITE Walking Foot (Alternating Feed) Lockstitch Sewing Machine with a Big "M" size Bobbin and Rotating Hook, Dial operated stitch length regulator, Reverse feed lever with fully Automatic Lubrication. This machine sews leather up to 3⁄8" thickness with thread from size z-33 up to size z-138.
The Complete sewing machine fromartisan includes our exclusive 800 Watt Output ACF-624 Electronic A.C. Energy Saving Servo Motor Stand Drive Unit, adjustable "T" style steel legs including locking caster wheels, anartisan ADR-124, 24 LED low voltage gooseneck lamp, drawer and accessories.
Recommended SCHMETZ brand Needle. Leather: 135 x 16 TRI Size(14 to 23) One of our most popular walking foot machines for lighter weight leather stitching.