Intcrown via Amazon offers its Intcrown Electric Pet Nail Grinder for $18.99. Coupon code "GGUS8UTH" cuts it to $14.49. Plus, Prime members receive free shipping. That's a $2 drop from last month and the best price we've seen. It features a diamond bit grinder, two guard attachments with four sizes of ports, and a rechargeable battery. Deal ends February 8.