Iscar's Wertheimer: Why We Sold Rest of Company to Warren Buffett

Warren Buffett has always spoken highly about Iscar, the Israeli metalworking company that joined the Berkshire Hathaway family seven years ago after Buffett received a letter from its chairman, Eitan Wertheimer.

This week, Berkshire bought the 20 percent of Iscar it didn't already own for $2 billion.

At this year's Berkshire shareholders meeting in Omaha, CNBC's Becky Quick spoke with Wertheimer about his relationship with Buffett and Berkshire.

Here's the complete interview: