Hammer size is given by its.

Explanation:

Hammers:

• An engineer's hammer is a hand tool used for striking purposes while punching, bending, straightening, chipping, forging, or riveting.
• The hammer is made of drop-forged carbon steel, while the wooden handle must be capable of absorbing shock.

Specification:

• An engineer's hammers are specified by their weight and the shape of the pein.
• Their weight varies from 125 grams to 750 grams.
• The weight of an engineer's hammer, used for marking purposes, is 250 grams.

Major parts of a hammer:

Face:

• The face is the striking portion. A slight convexity is given to it to avoid digging off the edge. It is used for striking while chipping, bending, punching, etc.

Pein:

• The pein is the other end of the head. It is used for shaping and forming work like riveting and bending.

Cheek:

• The cheek is the middle portion of the hammer-head. The weight of the hammer is stamped here. This portion of the hammer-head is left soft.

Eyehole:

• The eyehole is meant for fixing the handle. It is shaped to fit the handle rigidly. The wedges fix the handle in the eyehole.