SMA Gun Block Practice Test

What are the two most common screwdriver heads?

Phillips-head and Torx Flat or Phillips-head Hex and Phillips-head Flat head

Correct Answer:

Flat or Phillips-head

Explanation:

The main idea is that, in everyday work, you’ll encounter two screwdriver head shapes far more often than others: flat (slotted) and Phillips-head. They cover the vast majority of screws found in homes—flat for a simple single-slot screw and Phillips for a cross-head screw that lets the driver grip well and apply torque without easily camming out. These two types are cheap, universally produced, and compatible with a huge range of tasks, which is why they’re the most common. Other head types like Torx or hex appear in more specialized applications, and listing only one of the broad categories would miss the common, everyday pair.

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