Does using only Fetch in Webmaster Tools force a page re crawl?
JOHN MEULLER (Webmaster Analyst from Google):
Yes, in the sense that if you’re fetching a page in Search Console, then Google bot will be re crawling that page. We don’t reuse that information for indexing immediately. But you can use the Submit to Index feature that lets us re crawl again. And then we use that content for indexing.