This Buck diamond pocket sharpener comes in a retractable, pen style barrel. Tapered end for serrated blades or gut hooks. Fish hook groove. Flat side for straight blades. Pocket clip. Portable, versatile, and durable enough for field use. Medium 400 grit. Length: 5.75"
Do not use petroleum based honing oil on your diamond stone. Diamond stones may be used dry or with water.