I don't want to experience either to be honest! Still you can push it all the way through 'cause your thumb didnt hit the blade. The abrasive material causes the powder to wear off and let the old dull diamond go and exposed a new one.Īs for "cutting" your finger, I guess the correct answer is it will "grind" your finger. Fortunately the blade can be sharpened by cutting an abrasive material, like cinder block, day old morter, or an old 220 grit grinding wheel, or a sharpening stick sold for that purpose, so all is not lost. Slide the scale to one of the angle presets indicated on the frame, or stop it at any point along the way to make custom cuts. Twist the small knob on the front end of the saw counterclockwise to unlock the scale that sits around the blade. It is like the worlds hardest ball bearings rubbing against porcelain. Adjust the pivoting scale to angle the blade for beveled cuts. So then you have dull diamonds rubbing against porcelain instead of grinding it away. If you don't have a good match of blade and material, as occurs sometimes when cutting porcelain with a standard blade, what happens is that the diamonds get dull but the material, porcelain in this case, is not abrasive enough to wear the powder in the blade away. If you look closely at a blade with a magnifying glass you will see some new diamonds, some dull diamonds and some "holes" where diamonds have popped out. This process continues till your blade is worn out. Then, as the powder continues to be worn away, a new diamond from inside the rim is exposed with nice sharp facets, that will continue to grind away at your tile. After a certain amount of the powder is worn away the dull diamond falls out of, or is released from, the rim. Fortunately, if the correct blade is being used, the metal powder that surrounds these diamonds is also being worn away. These exposed diamonds do the grinding, but, as they get rounded off, or dull, they begin to cut slower.
Because there are diamond mixed in throughout the rim of the tile blade, a half worn blade cuts as well as a new blade, in some cases better because it is a little thinner than when new.Īs you grind material (or tile) you are rounding off the facets of the exposed diamonds.
The rim of most diamond blades, wet or dry, consists a powder and diamond mix that is formed into the rim or a segment on segmented blades, by pressure and heat. That is why tile saws do not have to have 360 degree blade protection like your circular saws do. Diamond blades do not cut, they grind, and are considered abrasive blades.
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