- There are four standard bit sizes for screwdrivers, each with a different use1:
- 1 4 mm: Used for delicate electronics and very fine mechanics, such as watches and laptops.
- 1/4″ (6.35 mm): The most widely-used standard.
- 5/16″ (about 8 mm, more precisely about 7.94 mm): Used for hard and heavy work.
- 3/8″ (about 10 mm, more precisely about 9.52): Used for heavy machinery.
Learn more:âś•This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.So, there are four standard bit (and bit driver and screwdriver) sizes, generally aimed for the following uses:
bike.bikegremlin.com/16083/screwdriver-hex-bit-siz…Driver bits generally come in 1” and 2” lengths (although you can find much longer lengths). The size of the tip on each driver bit is engraved on the base of the driver bit—it’s pretty faint and requires good light and maybe some reading glasses to see.diy.dunnlumber.com/projects/tools-101-series-wha… - People also ask
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