Aluminum Oxide 4″ x 1/4″ Square File

American Made Aluminum Oxide Files in a 1/4″ Square Profile

There are times when you need a good sharpening stone in a specific shape. At 4″ long with a 1/4″ square profile, these aluminum oxide stones can be just the thing. Perfect for inside corners, 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
• Medium – 180-220 Grit
• Fine – 320 Grit

Part numbers on stones:

• Coarse – 91428
• Medium – 91528
• Fine – 91628