Hammer

A hammer is a tool for putting nails into objects such as wood. It has a long handle, and a tip with a flat end for hitting nails. The most common type of hammer (sometimes called a claw hammer) has a curved end (on the other side of the hitting end) for pulling nails out.

A sledgehammer is a hammer that has a longer shaft, and a more massive head. The user can swing it with two hands and apply more force.

 History 
Hammers were used around 3.3 million years ago. The first hammers were made without handles. Stones attached to sticks with strips of leather or animal sinew were being used. Hammers with handles were made in 30,000 BCE during the middle of the Paleolithic Stone Age. The hammer was used for building, food and protection.

 Classification of hammers 
Hammers can be classified into two. They are:

 Hand-powered hammers 
Hand-powered hammers are hammers that are used with the hand. Examples include:

 Ball-peen hammer
 Boiler scaling hammer
 Brass hammer
 Bricklayer's hammer
 Carpenter's hammer
 Cow hammer
 Cross-peen hammer
 Dead blow hammer
 Demolition hammer
 Drilling hammer
 Electrician's hammer
 Engineer's hammer
 Gavel
 Geologist's hammer
 Knife-edged hammer
 Lathe hammer
 Lump hammer
 Magnetic double-head hammer
 Magnetic tack hammer
 Mallet
 Railway track keying hammer
 Rock climbing hammer
 Rounding hammer
 Shingler's hammer
 Sledgehammer
 Soft-faced hammer
 Splitting maul
 Strike Tack hammer
 Stonemason's hammer
 Tinner
 Upholstery hammer
 Warrington hammer
 Welder's chipping hammer

Mechanically-powered hammer
Mechanically powered hammers are hammers that are used with a machine. Examples include:

 Hammer drill
 High Frequency Impact Treatment hammer
 Jackhammer
 Steam hammer
 Trip hammer

 Hammers as weapons 
Big hammers were sometimes used as weapons. A tiny hammer is also used inside most small arms.

 In pop culture 
Hammer Bro from the Mario series is said to throw hammers at Mario.

 References 

Category:Basic English 850 words
Category:Tools