Why are handles of screw drivers used for electrical works made of plastics?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Material**: The handles of screwdrivers used for electrical work are made of plastic. This is the first point to note.

2. **Properties of Plastic**: Plastic is a type of material that does not have free electrons. This means that it does not conduct electricity.

3. **Insulating Properties**: Because plastic lacks free electrons, it acts as an insulator. An insulator is a material that does not allow the flow of electric current.

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