FINDER 01
Which Bit Does This Screw Need?
Pick the device you are opening and get the drive type, the size callout and the mistake people make on it.
Step 1 · What are you opening
Answer
Pick a device, then a head shape, then a size. The answer appears here with the near-miss bit that rounds the screw out.
How this is worked out
The rule
- This finder performs no arithmetic. It is a three-level lookup: device class, then drive family, then size callout.
- Every size entry carries its own tip dimension and its own near-miss list. Nothing is inherited from the device class or the drive family.
- A size is only listed under a device class when that pairing is in the data. Absence from the list is not evidence that the pairing never occurs.
What it assumes
- Sizes reflect common consumer hardware, not every revision a manufacturer has shipped.
- Metric tip dimensions are the nominal figure printed on bit packaging, not a measured value.
What it does not account for
- Security variants of a drive that add a center pin are called out separately only where the data lists them.
- Thread size, screw length and torque. This tool answers tip fit only.
- Adhesive, clips and gaskets holding a case shut once the screws are out.
Reference behind it
- Screw Drive Types and How to Tell Them ApartWhich drive am I looking at, and which bit seats in it
- Precision Bit Sizes by Device ClassWhich bit size a phone, laptop or console takes
- What to Do With a Stripped ScrewHow to get a rounded-out screw head to turn again
Categories it points at
- Screwdriver and Precision Bit SetsDecides: matching driver tip to screw drive exactly.
- Household and Mechanic Tool SetsDecides: covering common tasks without buying tools one at a time.