Will this blade work on my wet saw and angle grinder?

Yes — the dual 5/8" and 7/8" arbor design fits both tool types. Verify your tool's arbor size before installing.

Do I need water to use this blade, or can I run it dry?

Both work. Water cooling extends blade life and reduces dust, but the blade is rated for dry cutting too. If running dry, check your tool's RPM limits — angle grinders handle dry cutting better than wet saws.

How long does a blade like this typically last?

Lifespan depends on material hardness and cutting speed. Softer materials (tile, brick) last longer per blade than concrete. Wet cutting extends life versus dry. Replace when you notice slower cuts or chipping in the segments.