Intcrown via Amazon offers its Intcrown Electric Pet Nail Grinder for $18.99. Coupon code "VZFU8AE5" cuts it to $16.49. Plus, Prime members receive free shipping. That's tied with our mention from two weeks ago as $24 off list and the lowest price we could find. It features a diamond bit grinder, two guard attachments with four sizes of ports, and rechargeable battery. Deal ends December 12.