About the Ridgid 51005 Chuck, NIPPLE 819 NPT 1/2-2"
Ridgid 51005 819 NPT Nipple Chuck 1/2" - 2" is nipple chuck complete 1/2"-2" that holds short or close nipples for Threading. Ridgid 819 NPT Nipple Chuck 1/2"- 2" is for use With 300 Power Drive 300 Compact 535 and 1822 (with Adapter kit) and 1224 Threading Machines. The Rigid 51005 819 NPT Nipple Chuck 1/2-inch-2-inch includes insert and 5 Adapters: 1/2" 3/4" 1" 1 1/4" and 1 1/2". (Nipple Chuck body serves as 2" Adapter.)