... decorating project ST Nails Series (ST/FST/HT /WT Type)Specifications:1) Nails head: 6.4 x 2.2mm2) Shank diameter: 2 ... .20mm3) Length: 18 - 64mm (3/4 - 2 x 1/2 ... ")4) Models: ST18, ST25, ST32, ST38, ST45, ST50, ST57 ... ST57 ST64Productivity:3000/tons/month ST Nails Series (ST/FST/HT /WT Type)