Up for Sale is a Vintage BALCRANK 26942 360 Degree Hydraulic Swivel Coupler. NEW OLD STOCK, For use with Power Operated Grease Gun. This is from my leftover New tools from my Service Station Business that I had in the 1970s and 1980s. Never used and Genuine US Made tool, not a Chinese repro. Please see my other Automotive items and my other Ebay listings. THANKS.