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2. Jackhammer - Wikipedia

   en.wikipedia.org/wiki/Jackhammer

   A jackhammer (pneumatic drill or demolition hammer in British English) is a pneumatic or electro-mechanical tool that combines a hammer directly with a chisel. It was invented by William McReavy, who then sold the patent to Charles Brady King. [1] Hand-held jackhammers are generally powered by compressed air, but some are also powered by ...

3. Hammer drill - Wikipedia

   en.wikipedia.org/wiki/Hammer_drill

   A corded hammer drill next to a drill bit and a chuck key. A hammer drill, also known as a percussion drill or impact drill, is a power tool used chiefly for drilling in hard materials. [1] [2] It is a type of rotary drill with an impact mechanism that generates a hammering motion.

4. Hilti - Wikipedia

   en.wikipedia.org/wiki/Hilti

   It concentrates mainly on anchoring systems, fire protection systems, installation systems, measuring and detection tools (such as laser levels, range meters and line lasers), power tools (such as hammer drills, demolition hammers, diamond drills, cordless electric drills, heavy angle drills, power saws) and related software and services. [2]

5. Rotary hammer - Wikipedia

   en.wikipedia.org/wiki/Rotary_hammer

   A rotary hammer, also called rotary hammer drill [1] is a power tool that can perform heavy-duty tasks such as drilling and chiseling hard materials. [2] It is similar to a hammer drill in that it also pounds the drill bit in and out while it is spinning. However, rotary hammers use a piston mechanism instead of a special clutch.

6. Breaker (hydraulic) - Wikipedia

   en.wikipedia.org/wiki/Breaker_(hydraulic)

   Breakers are often referred to as "hammers", "peckers", "hoe rams" or "hoe rammers". These terms are popular and commonly used amongst construction / demolition workers. [ 1 ] [ 2 ] The first hydraulic breaker, Hydraulikhammer HM 400, was invented in 1967 by German company Krupp (today German company Atlas Copco ) in Essen .

7. DeWalt - Wikipedia

   en.wikipedia.org/wiki/DeWalt

   DeWalt is now a popular brand of tools for commercial contractors. In 2004, Black and Decker bought rival power tool manufacturer Porter-Cable and combined it with DeWalt in Jackson, Tennessee. [3] In 2011, DeWalt launched a line of contractors' hand tools (including utility knives, pliers, adjustable wrenches, tape measures, saws, and hammers ...