The teeth on the blade should point up. Usually there is printing on only one side of the blade and you should be able to read this on the open side.
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SKIL actually owns Bosch.
If your panel boards have a concrete content as some do,yes you can. If the main content of the board is wood, then you will burn them.
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Skil power tools have the best price/quality ratio
A reciprocating saw's blade moves in a back and forward motion. (thus, the Jigsaw ans sabre saw are types of reciprocating saw, but not called such). A circular saw such as the type made famous by Skil has a round blade and revolves to cut.
Skil is a power tool division that Bosch has to serve the do-it-yourself market.
Skil
There are plenty of online sites that sell skil saw's. These online sites include Sears, eBay, Amazon, Lowes, Skil Tools, Walmart, and there are many more places but too many to name!
Look for a use saw for sale and use that for parts.
If you are looking for Skil tools but want to save money, try ebay.com or craigslist.com. You can also find them at Walmart and Home Depot.
I install ceramic tile professionally in the Opelika, AL area. I have several saws some dry some wet. It depends on what kind of saw you have. Breakers have a tungsten blade that scribes the tile and then breaks it. Wet Saws usually have large blades 10-14" in diameter that need to be wet when cutting. Grinders have small 4-6" blades that cut dry. Hand saws look similar to a skil saw and usually cut dry also. I would recommend sharpening the blade by cutting a cinder block or brick with it. Just dip the blade into the brick or block about 1/2" to 1" about 2 times and it should dramatically improve the cutting ability of the blade. If you are cutting a hard, dense tile and the blade is "dulling", cut through a softer tile to "sharpen" the blade again.