Fein 63502106015 3-1/8-Inch High Speed Steel Segmented Saw Blade

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This works excellent in the proper situations, but be sure it's drywall you're going through, NOT a well done plaster job. Plaster will take the teeth off this blade faster than you can say "oh crud." This is a tool worth its weight in gold in certain situations.

I love using this tool but for 3 things:Brittle blade - my first one shattered when the tool it was mounted to hit the concrete floor.Breath taking accessory prices.The blade lock lever is too stiff for my small hands - it will snap shut breaking fingernails.

Great product, if a bit expensive, amazingly versatile for cutting precise notches into corners, holes in cement backer board and clean, straight lines through dry wall, and just about any metal or wood projects you can imagine. Fein 63502113019 3-5/16-Inch Flush Cut Wood Blade These blades hold their saw teeth edge very well. Since they are not a common, off-the-shelf item, it's a good idea to keep a spare available.

I accidently vibrated the center "teeth" out of the blade. No flux. These blades can be resharpened as well. I then filled the entire hole with silver solder, the hard stuff. Breaking this blade can be avoided by being sensitive to how the tool feels while you are cutting.

You dont have to be all that accurate about any of this to be successful. put another blade over it and mark the serations and hole. cut each of the holes in the center. I found these blades to be somewhat fragile also. Keep the heat on the edges of the hole. The solder wont stick to dull unprepared brass. it will fit right on and all it takes for time is about 1/2 hour. At this point you can remove the center in many ways, but I recommend grinding with a handheld rotary tool.

I just clamped the blade to a piece of dull brass plate with a 2" slice of pipe to protect the blade teeth. When it is cool some sanding to flatten the solder plug. The audible report they issue when being bent or side pressured is very definite, you just need to listen, use a small 5/32 drill bit and drill out each one of the seration marks.

I bought this blade to replace the one that came with the kit. I haven't used the new one yet, I am afraid of breaking it too. When I tried to install it the blade must have been just a little off center. As soon as I put pressure on it, the blade shattered into a dozen pieces.