The JET Tools JBHC-78 is a heavy-duty button head grease coupler for lubrication work on heavy machinery. It fits button head fittings in 5/8" and 7/8" sizes and has a 1/8" NPT thread. A wear-resistant metal seal is part of the coupler's construction, and its working pressure is 7,500 PSI. This product is identified by catalogue SKU SUW-350218.

• Fitting sizes: 5/8" and 7/8" button head
• Thread specification: 1/8" NPT
• Working pressure: 7,500 PSI
• Metal seal offers resistance to wear
• Manufacturer part number: JBHC-78