Final answer:
Reamers accomplish three key functions when drilling holes: ensuring the desired diameter, improving surface finish, and providing alignment and accuracy.
Step-by-step explanation:
When drilling holes, reamers accomplish the following:
- They ensure the hole has the desired diameter. Reamers are used to enlarge or finish holes to precise dimensions. They remove a small amount of material, creating a smooth and accurately sized hole.
- They improve the surface finish of the hole. Reamers have multiple cutting edges that create a smooth surface inside the hole, reducing roughness and imperfections.
- They provide alignment and accuracy. When using a reamer, it is important to start with a smaller hole that is pilot-drilled. The reamer then follows the pilot hole, ensuring proper alignment and accuracy.