Liquid Wrench LLD03/6-6PK Lock Lubricant and De-Icer - 3 oz, (Pack of 6) LIQUID WRENCH is a local family owned company based out of Charlotte, NC. For more than 75 years, LIQUID WRENCH products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation.LIQUID WRENCH Thaws frozen locks Prevents frost Displaces moisture Breaks through ice