pilot bit
Definition
Noun: A pilot bit is a small, leading drill bit that creates an initial, guiding hole. Its primary function is to ensure the accurate placement and alignment of a subsequent, larger drill bit that will finish the hole.
Usage
The term "pilot bit" is used specifically in drilling and machining contexts. It describes a tool used at the beginning of a process to establish a precise path for a larger tool to follow. * Always start with a pilot bit when drilling large holes in metal to prevent the drill from wandering. * The carpenter used a pilot bit to guide the larger Forstner bit for the clean hinge recess.
Advanced Usage
- Creating a Pilot Hole: The action of using a pilot bit is often described as "drilling a pilot hole." The pilot bit itself is the tool that performs this action.
- The key to a clean installation is to drill a precise pilot hole using the correct size pilot bit.
Variants and Related Words
- Pilot Hole (n): The small, initial hole created by a pilot bit.
- After drilling the pilot hole, he switched to the final drill size.
- Guide Bit (n): A less common synonym for pilot bit, emphasizing its guiding function.
- Center Bit (n): A type of bit often used to start a hole accurately, similar in function to a pilot bit but sometimes with a different design.
Synonyms
- Starter bit
- Guide bit
- Lead bit
Related Phrases
- To pilot a hole: A verb phrase meaning to drill an initial, guiding hole.
- You must pilot the hole before using the countersink bit.
Noun
-
a small bit that drills a first hole to guide a larger drill
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