Masonry Magazine May 2011 Page. 18
SAWS
K970 Gas Powered Power Cutter
Areas to consider
TYPICAL AREAS to consider when working in indoor, potentially confined spaces include:
Air/ventilation
* Knowing if there is proper ventilation or air flow in the work space will help determine if a gas or electric power cutter is better to use on the project.
* Gas engines produce carbon monoxide and can be fatal if exposed to in an area not properly vented.
Product Watch
Blades for AS170 Brick and Mortar Saw
Arbortech's new Head Joint and Heritage blades offer controlled cuts and precision for mortar removal on vertical joints and narrow mortar joints. The blades are available as aftermarket accessories for the Arbortech AS170 Brick and Mortar saw.
The Head Joint blades are ideal for cleaning out vertical mortar joints, with the ability to clean out the complete joint without any damage to surrounding bricks. A shortened blade offers precision and is easy to control, even when the user starts cuts in hard mortar. The cutting depth is 3 1/8-inch deep, and the cutting width is 1/4-inch wide.
Developed in response to feedback from heritage restoration specialists, the Heritage blades have a reduced cutting width of 1/8-inch and a high level of precision and control, allowing them to clean out the narrow lime mortar joints typically found in historic buildings.
Both blades feature a high-performance carbide formula and tooth design, and high-temperature brazing. The AS170's patented Allsaw cutting technology uses an orbital cutting motion with two forward-facing blades that combine to perform both a hammering and a cutting action. This allows the users to have clear visibility and the ability to accurately cut squarely and deeply. IMAS
For more information, visit www.AS170.com.
Type of material to be cut
* Knowing how thick the material is will help determine which tool is best to use. If a project calls for making
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16 MASONRY May 2011 www.masoncontractors.org The Voice of the Masonry Industry