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Screwdriver bit glossary

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Slipping / Camming out

Screwdriver bit and screw When driving certain types of screws, the screwdriver bit can slip out of the screw head, when a lot of torque (turning force) is applied.

This is also known as ‘camming-out’ and can result in the screwdriver bit damaging the screw head or the work surface.

Torx screws and screwdriver bits are designed to prevent cam out.

Stripping a screw head

Stripped screw A stripped screw head is the term used to describe a screw that has been damaged by a screwdriver bit.

Stripped screws are the result of a number of things:

  • General wear and tear
  • Using the wrong size or type of bit for the screw
  • The screwdriver slipping out of the screw’s drive and damaging its surface.
 Wonkee Donkee says; A stripped screw is usually a ruined screw. If a screw’s drive has become misshapen, the screwdriver bit may not be able to remove it.