ALPHA–Katana Turbo

This blade is the ultimate dry cutting diamond blade for the professional tile contractor.
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Eccentricity

Cause: The bond is too hard for the material being cut. The hard bond retains the diamonds, and they begin to round off, causing the blade to become dull. Instead of cutting, the blade begins to "pound", causing the blade to wear out–of–round.
Remedy: Change to a softer bond, which will wear away more readily allowing the dull diamonds to be released and sharp, new cutting edges to become exposed.

Cause: The saw blade shaft may have a groove scored in it, caused by a blade spinning between the flanges. A new blade, installed on the arbor shaft, will seat into the groove, and immediately run eccentrically when the saw starts.
Remedy: Replace worn shaft.

Cause: If the blade shaft bearings are worn, the shaft and mandrel will run eccentrically, causing the blade to wear out–of–round. This happens most often with concrete saws when proper lubrication of the bearings is neglected.
Remedy: Install new blade shaft bearings. In some cases it might also be necessary to replace the blade shaft if it is worn or out of alignment.