MMO Grinder - 2011 Hunter Blade 2-16 was released on:

USA: 23 August 2012

A coffee burr grinder grinds beans to a certain size more consistently. It also does not generate as much heat as a blade grinder and can handle exotic coffees.

You can get a quality coffee grinder for $30 to $100, depending on available space and grinder preference. For many coffee drinkers , the best grinder choice is a burr grinder, with the attached bean hopper - a solid brand choice is Capresso, starting at around $90. However, burr grinders take up more space than a standard blade grinder. When space is an issue, a blade grinder is the better purchase - the Krups brand is a smart choice, with quality grinders starting at around $30.

A burr grinder is not a must but it grounds the coffee more evenly than blade grinders so it is the preferred method.

yes but you will need a blade for stone :)