Automatic Precision die heads Simple and clear operation with the quick-adjustment thread sizes Automatic adjustable thread length for serial production Flexible work: Each thread size offers individual fine adjustment of the thread depth without recentering dimension change 6 Months replacement warranty against manufacturing defect Specifications Weight 8.3kg Application Bonding Thread Type NPT Working Area (Diameter) 2 1/2-4 In Dimensions (Gross) 34x34x15mm