The hammer drill I used in the tests was the 18-volt Makita BHP452, and the rotary hammer was a 1-inch Bosch Bulldog 11255VSR. To test battery life, I put a piece of 3⁄4-inch plywood on a few ...

Trevor Raab Both rotary hammer drills, and hammer drills have switches for drill and hammer modes. The Bosch rotary hammer drill (left) has modes for drill + hammer, drill only, and hammer only.

STANLEY SDH550KP 550W 10mm Corded Single Speed Hammer Drill Machine 2600 RPM 28V Compact BOSCH GBH 220 Corded Electric Rotary Hammer 1550 RPM 230V Lightweight, Variable Speed, Compact Cheston ...

This excellent, easy-to-master SDS+ drill from Ryobi gives you the power to do pretty heavy jobs in an accessible package. The tool has four settings: hammer, rotary hammer, hammer drill and drill.

The GBH18V-40CK27 kit includes the rotary hammer, two GBA18V120 CORE18V 12 Ah PROFACTOR Exclusive Batteries, a GAL18V-160C 18V 16-amp Turbo Charger, an auxiliary handle and a carrying case.

Power drills aren't only used for shoving screws into wooden planks. Whether you're remodeling your home or building one from scratch, holes need to be made into all kinds of surfaces, both for ...

When the going gets tough, reach for a tough hammer drill to punch through masonry ... For more challenging jobs we turn to rotary hammers. These powerful tools are not only capable of making ...

In addition, the harder the material, the less effective a hammer drill will ... hot issue in rotary hammers. According to Mitch Burdick, product manager for hammers at Bosch, vibration levels ...

We test drill drivers and combi drills (that come with a setting to hammer drill hard materials) from popular brands, including DeWalt, Makita, Milwaukee and more. We judge each on how well they ...