What Is Screw Bit

A screwdriver bit is a tool for driving screws and one that can be fitted to most drilling power tools. All screws have a head with a contour such that an appropriate screwdriver tip can be engaged in it in such a way that the application of sufficient torque to the screwdriver will cause the screw to rotate.

What are screw bits called?

Square or Robertson This type of screw will require the use of screwdriver bits are known as square recess bits or roberston bits. The are sometimes called roberston because they were invented by a Canadian named P.L. Roberston in 1908.

What are the different screwdriver bits?

Bit typeAbbreviationCommon sizesFlat blade/3 ; 4 ; 4.5 ; 5.5 ; 6 ; 6.5 (mm)PhillipsPHPH0, PH1, PH2, PH3, PH4PozidrivPZPZ0, PZ1, PZ2, PZ3, PZ4TorxTT10, T15, T20, T25, T30, T40

Chloe Bennett

Chloe Bennett

Culture, Media & Entertainment Columnist

Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.

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