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Gavel, used by judges and presiding authorities to draw attention. Originally these were often cross-peen hammers, with one round face and one wedge-peen face, but in modern usage the term primarily refers to hammers with two round faces. Engineer's hammer, a short-handled hammer, was originally an essential components of a railroad engineer's toolkit for working on steam locomotives. In modern usage, the term is mostly interchangeable with "engineer's hammer", although it can indicate a version with a slightly shorter handle. The name usually refers to a hammer with a 2-to-4-pound (0.91 to 1.81 kg) head and a 10-inch (250 mm) handle, also called a "single-jack" hammer because it was used by one person drilling, holding the chisel in one hand and the hammer in the other. Drilling hammer – a short handled sledgehammer originally used for drilling in rock with a chisel. Dead blow hammer delivers impact with very little recoil, often due to a hollow head filled with sand, lead shot or pellets. Cross-peen hammer, having one round face and one wedge-peen face. Cow hammer – sometimes used for livestock slaughter, a practice now deprecated due to animal welfare objections. Carpenter's hammer (used for nailing), such as the framing hammer and the claw hammer, and pinhammers (ball-peen and cross-peen types).
Brass hammer, also known as non-sparking hammer or spark-proof hammer and used mainly in flammable areas like oil fields.In recent years, the handles have been made of durable plastic or rubber, though wood is still widely used because of its shock-absorbing qualities and repairability.
In these environments, a variety of non-sparking metal tools are used, primarily made of aluminium or beryllium copper. These are a hazard in some industries such as underground coal mining (due to the presence of methane gas), or in other hazardous environments such as petroleum refineries and chemical plants. The impact between steel hammer heads and the objects being hit can create sparks, which may ignite flammable or explosive gases.