✅Lockstitch buttonholing machine with integrated motor. ✅The Jack JK-T781G-Z is driven by a built-in servo motor, which removes any vibrations, noise, and saves energy. ✅It also comes built-in with features such as an automatic presser foot lifter and thread trimmer. ✅Both of these features greatly increase your productivity speed as you won’t be having to make long pauses in between your sewing to cut the needle or lift up the presser foot. ✅Jack has designed this machine designed to sew buttonholes on males’ and females’ dress shirts, blouses, workwear, and ladies’ wear. **Features:** ✅Sewing speed: 3600 stitches/min ✅Length of the buttonhole – intersection 22mm ✅Width of the buttonhole – banding 2.5 – 4.0 mm * ✅Lift of work clamp: 12 mm ✅Stitch length: 0.2 – 2.5 mm ✅Functions: Woven Material ✅Needle System:DPx5 Size #12 ✅Number of Needles: 1 ✅Number of Threads: 2 ✅Side Cutter Function: 1/4" ~ 3/4" ✅Parallel Interspace: 0.2mm to 2.5mm ✅Automatic Thread trimmer: Yes ✅Automatic Presser Foot Lifting: Yes