Review on Malco MCCB7 4 Inch Cutting Standing: Powerhouse Tool for Efficient Precision Cuts by Leo Torres

I am buying two 7.25 inch Malco hacksaw blades. I'm working on a project where we poured a slab of concrete into an 18 gauge corrugated iron pan. flooring. We had to cut all the panels because the panel is curved. The project would require a lot of time and money to cut with grinding wheels or use a saber saw. Cutting material would be difficult and questionable with a torch. I planned it ahead and had these blades in my hands before I started. I can't tell you how easy it was to do this job with a Malco blade on one of my saws. It was really fun doing it. I've only used one blade to cut over 100 feet of metal decking. This means cutting over 200 feet of 18 gauge stock. The blade stayed very sharp until the last 10 feet of cutting. last 10 minutes. Apart from only losing one of the carbide tips, the saw was in very good condition. I still have a new saw blade and the other one is in the saw shop now being sharpened for another day. The saw blade appears to run cool and does not appear to spark like a sanding sheet. Sparks are very damaging to products such as painted metal roofs. Sparks burn through the paint, causing rust streaks and premature metal coating failure. This blade ejects small flakes of steel that appear fairly cool and do not burn. I look forward to using this blade to cut the metal roofing that will be installed on this home. A few caveats about this work. You need hearing protection! You also need very good glasses. Third, you need the right saw. There are saws that are specifically designed to use these blades to cut metal. They are sealed from the outside in such a way that small metal "sawdust" cannot get into the engine. Some even have a box that contains quite a bit of sawdust. The saws are quite expensive and I will buy them in the future, but I haven't decided which saw is best for my needs. In the meantime, I used one of my Skil 8.25" saws. I covered all the slots in the air ducts with a piece of perforated plastic drain pipe filter cloth and some tape. It was quick and easy, and the saw sealed well. I have one Friend at a steel fabrication shop that had several Skil saws failing due to this problem, be warned, don't waste a saw that is in good working order, put a diaper on it!