Hammer drills have been around for quite a while. Sure, a regular drill might be serviceable when it comes to drilling a hole or two. But when dealing with extra durable materials such as cement, bricks, stones, and other stonework, you will most like require something that packs a little more punch. A hammer drill work can go further in your work routine.
Compared to a traditional power drill unit, a hammer drill–in addition to using high speed rotation–generates furious pounding force to blast through and penetrate into tougher-than-usual materials like general masonry. The way is works is that as the drill bit spins, the hammer drill chisels away at the material at the same time.
The mechanical process that generate this pounding-hammering action is fundamentally what separates a hammer drill from a traditional power drill. A hammer drill technically pulverizes the piece of material under the drill bit as the vibrating drill churns into the surface.
As in the case of most hammer drills, the hammer mechanism works separately from the drilling mechanism. This is what basically allows the hammering action to be engaged or disengaged independently from the rotating shaft. When engaged, the hammering mechanism drives its weight into the end of the shaft, producing the drill’s characteristic hammering action.
Most hammer drill units available in the market actually provides the user with the option to disengage the hammering action; this effectively transforms most hammer drills into a traditional power drill. There are also hammer drill options that offer the user with three drilling modes: drill mode which disengages the hammer action; hammer mode which uses a combination of hammering action and high-speed rotation; and chisel mode which disengages drill rotation, effectively transforming the drill into a small jackhammer.