New mini double sided Nano file can be used for any blades you want to hone. It is handy and convenient because of this mini size. You can bring them on anywhere - outdoors, indoors......anywhere you want!

Made in USA

Dimension: 210mmx12mm

Micron Size: 100/25 (Medium/Fine) Micron and 200/50 (Course/Medium) Micron

6061 Aircraft aluminum