Masonry Magazine April 2009 Page. 26
SAWS
High-end, lighter weight grinders
MASONRY CONTRACTORS who want to cut with angle grinders have a new line of seven- and nine-inch models to choose from, courtesy of Mount Prospect, III.-based Bosch Power Tools and Accessories. The company's 1900 series grinders are powered by four-horse-power motors that are 15 percent more efficient.
"We redesigned the motor to make it more efficient, not so much to get more power, but to make the tool weigh less and still get the same power," says Ryan Anderson, product manager for angle grinders.
The 11.8 lb. grinders weigh 20 percent less than comparably sized grinders, Anderson says. The grinders have also reduced vibration by 50 percent for better ergonomics.
"We separated the handle from the tool, as much as possible," Anderson says. "We've made it a more efficient tool. You can use it for longer periods if time without so much fatigue."
One of the grinders, model 1994-6, offers a handle that rotates 90 degrees in either direction for better control, Anderson says. "This makes it comfortable to use when making awkward cuts."
Plunge Cutting Without Overcutting
Chain saws tackle deep cuts in concrete and masonry.
Concrete chain saws offer masonry contractors the ability to make deep cuts in walls without disturbing the surrounding brick or block, without overcutting, and without the high cost formerly associated with the saws.
"You can get a perfect, 45-degree cut," says Matt Shrater, regional account manager for World Diamond Source Inc., a Pompano Beach, Fla.-based diamond blade and concrete chain saw dealer. "You can me a cut in five minutes, verses 20 or 30 minutes to cut with a circular saw."
Mike Reisert, regional manager for World Diamond, agrees, adding that concrete saws are perfect for masonry contractors who handle repair projects. "You can remove a single brick or single block for repairs," he says.
Shrater says the cost of concrete saw cutting has dropped dramatically in recent years. Contractors can now make cuts for as low as $0.50 per foot.
"The price has definitely come down to where it's more palatable," Reisert concurs.
The new FORCE4 diamond chain from ICS, Blount Inc., in Portland, Ore., offers a stronger chain and improved diamond segment for a longer lifespan, Shrater says. Bar and chain lengths up to 25 inches allow contractors to make deep cuts with the chain saws. MAS By Brett Martin
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24 MASONRY April 2009 www.masoncontractors.org