The RIDGID 811A (Part 97065) quick-opening die head covers ⅛″–2″ NPT pipe and ¼″–2″ bolts. Its quick-release lever retracts dies for fast size changes without tools. Cast-iron body integrates through-head oiling for smooth threading. Compatible with all RIDGID power threaders and weighs approximately 13 lb—designed for efficient, reliable threading on job sites