# Deburring Tools

Deburring tools are used in FRC fabrication to remove sharp edges (burrs) created after cutting, drilling, or machining metal parts. Proper deburring improves safety, fit, and part durability.

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</div>## What Is a Burr?

A burr is a sharp or rough edge left behind after:

- Drilling holes
- Cutting aluminum extrusion or plate
- Machining or grinding

Burrs can cause:

- Cuts and injuries
- Poor part fitment
- Difficulty inserting bolts or rivets

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</div>## Deburring Tools

### Hand Deburrer

- Small rotary tool with a cutting blade
- Used to chamfer hole edges
- Fast and easy for repeated use

### Deburring Bit (in drill)

- Installed directly into a drill
- Quickly cleans hole edges
- Common in high-volume fabrication

### File or Sanding Tool

- Used for larger edges or cut surfaces
- Removes sharp corners and smooths surfaces

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</div>## Proper Use

- Lightly remove only the sharp edge (do not remove excess material)
- Deburr both sides of drilled holes when possible
- Smooth cut ends of extrusion after cutting
- Check parts by touch carefully after finishing

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</div>## Common Mistakes

- Over-deburring (making holes oversized)
- Skipping internal hole edges
- Leaving sharp edges on cut extrusion
- Using excessive force that damages the part

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</div>## Key Idea

Deburring is a small step that has a big impact. Removing sharp edges improves safety, ensures proper fastener fit, and increases overall build quality in FRC robots.