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UO-Chikyu Nut Files – Individual Sizes
High-precision nut slotting tools made in Hiroshima, Japan.

These professional-grade nut files from UO-Chikyu are now available individually — perfect if you need specific gauges for your builds or setups.

Each file is made from hardened Japanese steel and cuts cleanly through bone, Tusq, plastic, and synthetic nuts with total control.

Choose the exact size you need using the dropdown above.

Key Features:

• Single nut files in various slot widths
• Clean, accurate cutting, no chatter or tearing
• Double-sided filing surface
• Comfortable grip and excellent feedback
• Ideal for pro luthiers and hobby builders alike