A #3000 pocket-sized whetstone from Naniwa's Pocket Pro line, compact enough to travel yet fine enough to take a working edge up to a keener finish. Naniwa has produced sharpening stones in Japan for industrial and household use for more than 60 years.

• Type: Pocket whetstone
• Grit: #3000 (fine)
• Use: Refining the edge after medium-grit sharpening
• Origin: Made in Japan