The tools that work best for drilling into concrete are rotary hammers and hammer drills. Rotary hammers are weighted to provide the power that’s needed to make either small holes or larger ...

Typically, a drill/hammer drill is for small holes and a rotary hammer is for larger holes that are more than ⅜- inch in diameter. ”Selecting the right tools for the task will enable you to dr ...

The Ideal Micro-Drill™ is designed for research applications that require surgical burrs and trephines. The drill is constructed of light-weight aluminum alloy for balance and control and is ...

and they require less power from the drill’s motor.” Hole saws and small-bore annular cutters can be used with hand-held drills, but they are likely to perform better in a drill press where ...

Four times the holes, four times the trouble. With the fate of repetitive motion injury looming due to the need to drill 1,200 holes, [bitluni] took matters into his own hands and built this nifty ...