Hole processing

Illustration of Hole processing

Operations that create or widen/improve round holes

Hole processing methods are, for example:

Chip-breaking operation when an existing hole diameter is increased by a rotary cutter.
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Abrasive machining where a tool consisting of a number of abrasive stones is scrubbed along the inner wall of a hole
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Reamers are used to widen a hole diameter while improving its roundness.
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Twist drilling
The twist drill is the most common tool used for creating a hole.
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