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I am very please with the Makita shear. I had no trouble stopping and removing the curle and restarting on the line. This used the back of the movable cutter instead of the tip.
I recommend that you take one piece of the cement board and make a few cuts to learn the operation. The only problem to the cut, is the aproximate 1/4 inch of material that is being cut out curls up and foreward. There is a slight learning curve in hloding the shear at the correct angle for the best cuts.
I also could stay on the scribed line very well. I found that holding the shear handle up so that the cut was made with the cutter tip, makes for a ragged cut and the shears pulled away from my scribed line. I found by holding the shear handle down and making sure the stationary jaws were flat against and parallel to the board, then I could make good clean cuts.
This obstructs your view of the jaws and the scribed line. If you can have a second person there to remove there to assist and remove the curl as it comes out of the jaws then you can make a nice continous cut.
I bought the Dewalt Hardie Plank 7 1/4" circular saw blade for $55 in 2007 and it is still going strong. Here is the quote:http://www.contractortalk.com/f4/ss110a-shear-fiber-cement-siding-8436/"The shears are quick and easy but they don't give a real clean cut. This is not a review of the shear but is intended to correct erroneous info regarding using a saw to cut Hardie Plank. No sign of wearing out or dulling. :-(I suggest you look at all the factors -- good and bad. I have used the same blade on two houses -- that is about 625 boards with multiple cuts on most boards. I have read forum remarks that say the shear cut is not very clean and the saw is used to get a clean cut.
I certainly like the shears a whole lot better than I do that diamond saw blade which I still use when I need a clean cut."Yes it is noisy and dusty so I use a respirator and hearing protectors when cutting, although if there is a wind blowing, I sometimes don't bother with the respirator.The advantage of the saw is that it is FAST and you can GANG CUT several boards which can really speed up installation. Some reviewers complain about saw blades for Hardie board wearing out rapidly. They tend to crush the the Hardi a small bit.not terrible and certainly well within what we would expect as building tolerances. The blade still cuts like a champ. It makes a very clean cut. I have cut 4 boards at a time with no problem.Try a gang cut with the shears.
No dust no mess. This tool is fantastic for cutting tile board. Cuts 1/4 and 1/2 inch with extreme ease. Can cut in a curve pattern also. If you do tile work full time or part time this is a must have.
This fiber cement shear is the best I've used. Compared to other brands, it is lighter, more stable because of the flat shoe on the bottom, and more powerful.The reversible cutters make this an extra valuable tool. The polished steel head and dark cutter blades helps to focus your attention on the cutting line, which improves accuracy. As always with Makita, the carrying case is well designed and rugged.
Smooth, well balanced, clean and powerful are just some of the things that my crew and I have to say about them. I have used the older version of the Porter Cable shears. One house of hardi backer and full 8 1/4" lap siding and they sill look new and deliver clean cuts. I took them on loan from a friend to remodel a bathroom and was greatley impressed. But as impressed as I was with the Porter Cable shears I am completley blown away with the Mikita shears. I cant believe that I have dealt with the dust and clean up with the numerous hardi blades that I have been through. Extreemley satisfied.
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