Osborne Edge Tool No 3

This is a C S Osborne & Co No 3 Edge Tool, used to remove the sharpness from the cut edges of firm leathers.

No 3 is the second to largest size of edge tool, removing approx 5/64" (1.98mm) of leather from your edges.

(If you want a more defined/less rounded edge, choose an edge tool with a lower number)