Reaming
Glossary · Machining Operations
At a glance
- Category /
- Machining Operations
- Related /
- 2 terms
- Source /
- Written in the shop
Reaming finishes a previously drilled hole to a precise diameter and a smooth surface using a multi-fluted tool that removes only a small amount of material.
In practice
A reamer follows the existing hole rather than correcting its position, taking off a few thou to bring it to size with a good finish. It is faster than boring but cannot fix a hole that is in the wrong place.
Why it matters
Reaming is the right choice for an accurately sized hole in an already-correct location; boring is the right choice when position or straightness also needs fixing. Choosing wrong wastes either money or accuracy.
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