work for you?
Mueller Ultra-Grind Conical Burr Grinder Professional Series - $49.97 ($40 off)
Amazon has $40 off coupon for the Mueller Ultra-Grind Conical Burr Grinder Professional Series coffee grinder. So its $89.97 - $40 = $49.97. Pretty good deal considering the reviews and the overall functionalities.
Note: There is no coupon code, you need to click on the checkbox for $40 off. Please refer the attached screenshot in this post.