Working in concrete and masonry can be fun -- at least in theory. Knocking down a brick or block wall, drilling anchor holes in concrete, and even hogging off ceramic tile can be an adrenaline-rich, physical diversion from the office and clients. But anyone who's spent much time drilling or chipping with a big old chipping or rotary hammer knows that any novelty wears off in a hurry -- it's dirty, hard work, and the faster it's over, the better. Chipping hammers can rattle your teeth and underpowered rotary hammers waste time. And anyone who's bought two tools for chipping or drilling knows that there never was any novelty -- this equipment ain't cheap. Besides, if you end up with underpowered, undersized tools you'll get exhausting vibration while productivity drops like a stone. I know because I've been there. There's not a single project my company does that won't require drilling or chipping these materials.

Whether it's chipping a high spot in a slab, drilling a thousand anchor holes, peeling tile, punching through a masonry wall, or chipping through a foundation, the tools we rely on have to be tough; 3,500-psi re-bar-embedded concrete or super-hardened 100-year-old concrete doesn't give in easily. They also have to be mobile enough to move into...

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