Claw hammer is a kind of hammer, which is mainly used for driving nails into other objects or extracting nails from other objects. In general, claw hammer hammers are most commonly used by woodworkers, but are not limited to use with woodwork. Claw hammers are not suitable for heavy hammering on metal surfaces (such as in machining), because the steel at the head is slightly brittle; ball-nose hammers are more suitable for striking on metal surfaces.
The claw hammer applies the principle of leverage and is a labor-saving lever. The production process of a claw hammer generally includes steps such as forging, edge trimming, sandblasting, polishing, heat treatment, and handle addition. A claw hammer is roughly like the letter "T", where the handle is the long part, and the head is a line that looks like a "t" through the top. In fact, the head of the hammer does not form a straight line, but curves down into the jaws of the hammer. One side of the head is flat, has a smooth or textured surface, and is used to strike the other surface. The other side of the head curves down and splits in the middle forming a "V" shape. This part is the claw of the hammer, most commonly used to extract nails from wood. The rounded ends of the claws are used in combination with the handle for leverage when pulling out nails. Claw hammers can be constructed in a variety of ways, but generally take the following two forms.
The first type is composed of a hammer head with a hole and a handle, called a combination claw hammer. Handle materials are usually wood, fiberglass or even carbon fiber, but not limited to these materials. This is also a very popular type of hammer.
Another type of claw hammer is a single piece of forged heat-treated steel, in which the head and handle are integrated, called a one-piece claw hammer. This type usually has a handle wrapped in various plastics to increase its ergonomics and reduce vibration when using the hammer.
According to the handle, common claw hammers have wooden handles, steel pipe handles, fiber handles, and plastic-coated handles. Another type of claw hammer is called a framing hammer and is used in framing carpentry. The larger and heavier head of a framing hammer reduces the number of blows needed to hammer a nail. Frame hammers often have a "checkered" face, which reduces bouncing of the head if the strike is not precisely hit on the wood. In rough woodworking, the tiny indentations a checkered surface makes in the wood are considered unimportant. The claws of frame hammers are relatively straight. This relatively straight claw can easily knock into the wooden facade, so you can use the hammer to pick up the scattered wooden cubes on the ground.
Size Claw hammer specifications are generally expressed by quality, 8OZ, 10OZ, 12OZ, 16OZ, 20OZ, 32OZ, etc., OZ is an imperial unit of ounce, one ounce is equal to 28.35g, and the commonly used claw hammer weighs 8-16 ounces (227- 454 g). Frame hammers generally weigh between 20-32 ounces (567-907 grams).
Before we decide which claw hammer to buy, it is generally enough to consider the weight and handle. The weight of the claw hammer The weight of the most commonly used hammer head is 16 ounces, which is 453 grams. A hammer of this weight can handle a lot of delicate work. Such as hanging picture frames, carpentry work, but also can be used for large-scale work such as repairing fences and patios. Generally, when it comes to making wooden frames, a heavier frame hammer is used. The handle material of the claw hammer is followed by the material of the hammer handle, which has wooden handle, fiberglass handle and iron handle. The wooden handle has the strongest shock absorption ability, and it is also the lightest material. Therefore, the weight of a hammer with a wooden handle is concentrated on the hammer head. Fiberglass hammer handles are second only to wood in shock absorption and are favored by electricians because they do not conduct electricity. The biggest feature of the metal handle is that it is very strong, and it is a piece of metal from the beginning to the end.