Makita B-33015, 165 × 20 mm, 48T

Every figure below is a manufacturer specification read off the listing itself. The judgments are ours.

What the specification says

Ø 165 × 20 mm (6.50 × 0.79 in), 48 teeth, described for plunge saws. Part number B-33015 — although the title of the same listing names B-09298.

Bore before diameter

The diameter decides whether the blade clears the guard; the bore decides whether it goes onto the shaft at all. Thirty millimeters is the European standard, and reducer rings step a large bore down onto a smaller shaft — never the other way round. A ring that is a loose fit lets the blade run slightly off center, which shows up as vibration and a cut that wanders rather than as an obvious fault.

Read both figures off the machine rather than off the blade you are replacing, which may itself have been the wrong one.

Two part numbers, one product

A listing that contradicts itself is not automatically the wrong product, but it does mean the code you copy into a search may not lead back here. The dimensions are consistent across the title and the feature list, and those are what decide whether the blade fits.