Are Irwin Vise-Grips still made the same as the original?

No. Across r/Tools and mainstream tool reviewers, the consensus is that current Irwin Vise-Grips are made overseas and aren't quite the legendary tool they were under the original American manufacturing. Reviewers still consider them solid and a reasonable value, but call out occasional QC issues like loose handle grips and uneven jaw hardening compared to vintage pairs.