Answer:

Advantages and disadvantages：

The users set ratchet into screw or socket when they used it.

They usually turn the body of ratchet to use it.

If the angle of teeth is smaller, then you can use less force on turning its angle. When repair

technician fixed the car in a narrow place, he can’t use bigger turning angle.

However, the advantage of ratchet head has less teeth:

The structure of driver and pawl contradict each other. (As Figure)

The teeth are lesser, so the structure is more stronger.

Explanation:

hope it helps

Answer:

Types of socket wrench.

Explanation:

#1) Ratcheting.

#2) Flex Head.

#3) T-Handle.

#4) Nut Driver.

#5) Gearless.