A rotary hammer, also called a rotary hammer drill, functions similarly to a drill. However, where a drill simply rotates the drill bit, a rotary hammer adds a hammering action. They use a piston system which creates compressed air to drive the hammer mechanism. Many options, like this 1-1/4-in SDS-plus Rotary Hammer, offer three settings: rotary-only, rotary hammer, or hammer-only mode.
Though both rotary hammers and demolition hammers break up concrete and masonry, they work in different applications and provide different services.
Rotary hammers combine rotation with a hammering action to break up concrete. They work well for drilling and chiseling. Rotary hammers often feature a cordless design, but you can find corded options.
Demolition hammers use a hammer action with no rotation. They work well in heavier-duty applications than rotary hammers. Often, demolition hammers come with a cord, but some cordless options exist.
They also differ from hammer drills. While both tools combine a rotating bit with a hammering action, hammer drills use less force than a rotary hammer. Rotary hammers are often larger than a hammer drill and typically see use by professionals for larger jobs than hammer drills.
Bosch remains a manufacturing pioneer with over a century’s worth of experience. The Robert Bosch Tool Corporation continues as a world leader in the design, manufacture, and sale of power tools and power tool accessories. Their collection of quality power tools include their rotary hammers available in various drilling sizes and grip styles.
They also offer their PROFACTOR tools which provide corded performance for cordless power tools. Their high quality PROFACTOR tools include this PROFACTOR SDS-Max rotary hammer. It delivers superior impact with 9.3 ft. lbs. of impact energy. It also features an anti-vibration system that helps reduce vibration with a longer air cushion in the hammer tube as well as dampeners in the handle and a counter-balance weight in the hammer mechanism.
You can also find options, like this 1-in SDS-plus D-Handle Rotary Hammer, which feature PROFACTOR performance batteries.