Aluminum Oxide 4" x 1/4" Round File Grit:Fine It does not work as

It does not work as an upgrade for models with a manual vise

It is especially useful when sharpening large knives or many knives in succession

Clamp Opening - 0

72 teeth per inch wheel

Aluminum Oxide 4" x 1/4" Round File Grit:Fine It does not work asAmerican Made Aluminum Oxide Files in a 1 4" Round Profile There are times when you need a good sharpening stone in a specific shape. At 4" long with a 1 4" diameter round profile, these aluminum oxide stones can be just the thing. Perfect for sharpening the insides of gouges or removing burrs, these stones are proudly made for us in the US. Available in 3 grits. Choose the one that suits your need or save when you get all three. Coarse 120 Grit