jjw-germany 216 × 30, 24T negative rake

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

What the specification says

Ø 216 × 30 mm (8.50 × 1.18 in), 24 alternate-top-bevel teeth, negative rake. Part number 42509806.

Rake angle — the specification that matters on a chop saw

Rake is the angle the tooth leans forward. A positive rake pulls itself into the cut, which is what you want on a table saw where the work is fed against the blade. On a mitre saw, where the blade comes down onto fixed work, that same self-feeding is what makes the head snatch and climb.

Mitre saws want a negative rake. It is the single most important number on a chop saw blade, it costs nothing extra, and almost nobody checks it.

This is the only blade in this batch that states it, and it is the reason the blade is on the page despite being an unfamiliar brand.

Tooth count, in one paragraph

Fewer teeth cut faster and rougher; more teeth cut slower and cleaner. The reason is chip clearance: each tooth has to carry its chip out of the kerf, and a coarse blade has room to do it. A fine blade in a deep rip cut has nowhere to put the waste, so it heats up and burns.

Roughly: 24 teeth on a 250 mm (9.84 in) blade for ripping solid timber, 40 to 60 for general work, 80 for crosscutting and sheet goods where the finish shows.