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What is an expansive bit?
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Shop for Expansive bits |
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An expansive bit is a tool for boring holes of variable width. |
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Expansive bits are made with adjustable cutters that can be extended or retracted. They were designed to eliminate the need for DIYers to buy sets of drill bits. |
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They can be used on all types of wood, as well as other relatively soft materials such as plastic and plasterboard. |
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As expansive bits are becoming outdated thanks to the falling costs for sets of other types of wood bit, they are starting to be considered specialist tools, despite their versatility. |
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Thanks to the adjustable cutter that forms the functional part of the tool, expansive bits are also known as ‘adjustable bits’. |
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