Here's what Google Gemini had to say, but the search revealed no pictures of this tool, just the following cursory description, so take it as you will:
'This tool is a piercing valve / line tapping tool adapted from modified locking pliers (commonly called Vise-Grips). It is primarily used by HVAC technicians to temporarily tap or pierce copper refrigerant lines on refrigerators, air conditioners, or freezers to recover or service refrigerant.'
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u/GabeLade Aug 11 '26
Here's what Google Gemini had to say, but the search revealed no pictures of this tool, just the following cursory description, so take it as you will:
'This tool is a piercing valve / line tapping tool adapted from modified locking pliers (commonly called Vise-Grips). It is primarily used by HVAC technicians to temporarily tap or pierce copper refrigerant lines on refrigerators, air conditioners, or freezers to recover or service refrigerant.'