The first thing you'll notice about Bosch's rotary hammer is its great ergonomics, which clearly were a major consideration in the design of the hammer. The grip and trigger mechanism are well integrated, especially the front grip, and long enough to accommodate different body styles (I've got long arms; my buddy is the opposite: we both liked the tool's feel). For a rotary hammer, design is especially critical during overhead and down-drilling operations, where fatigue can quickly rear its ugly head. The tool's vario-lock positioning is great; it gives you 36 different working angles to choose from so you can modify the tool to fit the application. Likewise, the hammer offers three operational modes: hammer only, rotation only, and hammer with rotation. Are there drawbacks? Not many. The bit-changing mechanism is a little stiff and a little cumbersome, perhaps--but that's a pretty minor negative in a tool that otherwise provides such pleasant operation. The people at Bosch really know what they're doing, and it shows in this tool.
The 11224VSR's lightweight and ergonomic design makes it ideal for overhead applications (click to enlarge).
With a 6.9-amp, 120-volt motor, the bulldog rotary hammer packs a punch despite weighing only 6.5 pounds and measuring 17-1/2 inches long. Its no-load speed of 0-1,100 RPM and no-load beats per minute of 0-6,150 BPM—along with 1.5 foot-pounds of impact force—make the 11224VSR ideal for use with a variety of materials. It is capable of a 2-1/2-inch maximum hole diameter in concrete (thin-wall core bit), a 1-inch maximum hole diameter in wood, and a 3/16-inch to 5/8-inch optimal concrete capacity range.
Compact and Ergonomic
The SDS-plus’s 360-degree auxiliary handle is equipped with a built-in depth gauge, which provides users a wide range of movement while maintaining consistent drilling depth. Its D-handle design delivers additional control, especially in down-drilling or overhead applications that typically cause user fatigue. Exclusive to Bosch, the Vario-Lock positioning rotates and locks the chisel into 36 positions to optimize the perfect working angle.
What's in the Box
The 11224 VSR includes one Bosch 11224VSR 7/8-inch SDS-plus bulldog rotary hammer, one auxiliary handle, one depth gauge, and one carrying case.
|Bosch’s 11224VSR 7/8-inch SDS-plus bulldog rotary hammer is ideal for use with concrete, brick, stone, and masonry (click to enlarge).|