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Glossary Index

A B C D E F G H I J K L M P Q R S T U V W

Drill Bit Features

Drill Bit Features

The Flute

This is the cutaway part of the drill for removing swarf.

The Helix

The helix refers to the angle of the twist of the drill, which on standard drills is taken to be approximately 30° from the central axis.

The Land

This is the extreme edge of the drill which steadies it while drilling.