Oscillating Tool - Best Blade ?

[abl1111]

Just grabbed a Bosch oscillating tool to do some re-coring. I've never used one before but know that it is a highly effective tool for this. I've used a grinder in the past - and am looking forward to less of a mess !

What is the best blade and or blades to cut through either the gelcoat or skin side of a cored section ?

Thx

[otterhound]

The bimetal circular blades have worked well for me. They do struggle in the real thick stuff however.
Rod

[FLexpat]

I managed to wreck the toothed blades pretty fast - I switched to the Milwaukee carbide grit blades and they are a little slower cutting but seem to last longer.

[SandlapperGT]

Has anyone tried one of the scraper blades that you can attach to a sawsall? Think they are usually in the tile section