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Cordless Drills
If you already own cordless tools, check to see whether the same company makes a hammer drill or rotary hammer that works with the same batteries. Sometimes you can buy a cordless tool without the battery cheaper than you can buy a corded one.

4 Tips for Drilling Into Concrete

1. Clear the Debris
The flutes on a drill bit are designed to pull up the debris from the hole as you drill, but the best way to clear the hole is to occasionally pull the bit out of the hole as you’re drilling. Less debris in the hole reduces friction, which means smoother drilling, less chance of binding and longer-lasting drill bits.

rotary vs hammer drills broken bits

2. Don’t Push Too Hard
There’s a “sweet spot” where the right rpm combined with the right pressure drills fastest. But you won’t find that sweet spot by pushing down as hard as you can. In fact, too much pressure will slow the drilling process and put a whole lot of unnecessary wear and tear on the motor gears. Plus, you’ll break bits.

rotary vs hammer drills depth stop

3. Avoid Over Drilling
Most hammer drills and rotary hammers are sold with a side handle and depth stop. Do yourself a favor and use them. There’s no reason to burn up both time and bits by drilling deeper holes than you need to. And you don’t always want to drill all the way through a concrete block to its hollow core—some plastic anchors need a back to stop them or they will get pushed right through the hole.

rotary vs. hammer drill smaller hole first

4. Drill a Smaller Hole First
If you need to drill a couple holes that are larger than the recommended capacity of your drill, start with a smaller hole first. This will significantly reduce the load on the drill. Also, smaller bits don’t skate around as much as larger bits do, which is helpful when you need a hole in a precise spot.

Hammer Drill Bits
hammer vs rotary drill hammer drill bit
A hammer drill is perfect for light masonry. It works best at drilling holes in bricks, mortar and concrete blocks. But it can also handle the occasional hole in poured concrete.

You don’t need to spend tons of money on hammer drill bits, but more expensive bits are usually equipped with superior carbide tips, and the tips are more securely attached to the shank of the bits, which reduces breakage in heavy use.

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