Reamer
Description
A Reamer is a precision cutting tool used to enlarge and finish previously drilled holes to an accurate size and smooth surface. It removes a small amount of material to improve dimensional accuracy and surface finish. Reamers are widely used in fitting, machining, and manufacturing operations.
Uses
- Finishing drilled holes to exact size.
- Improving surface finish of holes.
- Correcting slight misalignment in holes.
- Used in precision engineering work.
- Ensuring proper fit of shafts and fasteners.
Parts of Reamer
- Shank: Fits into the tool holder or chuck.
- Flutes: Cutting edges for material removal.
- Cutting Edges: Perform finishing operation.
- Body: Main working portion.
Material
- High-speed steel (HSS)
- Cobalt steel
- Carbide-tipped (for high precision)
Shape
A Reamer has a straight or slightly tapered cylindrical body with multiple straight or helical flutes. It is designed for finishing operations rather than heavy cutting.
Safety Precautions
- Use correct speed and feed.
- Do not apply excessive force.
- Ensure proper alignment with the hole.
- Use lubrication if required.
- Keep the tool clean and sharp.
Conclusion
The Reamer is an essential finishing tool for achieving precise hole dimensions and smooth surfaces. It plays a vital role in ensuring accuracy and quality in machining operations.