Not only are they thick,the G6's (not sure about the G5's) are the widest at 3 inches.
I installed my set yesterday and so far I like them.
These are NOT thicker than the JD blades I have been using. They are actually
thinner and come with a 3/32"spacer washer to compensate.
They are wider and measure 20 7/16" long vs. the 20 1/2" listed. These are for a 60" deck. No problem fitting the deck.
This is the JD M141785 vs. the Oregon 396-734
My 445 without the chute throws grass out good anyway, but with these blades and dry grass it shoots grass out 12 feet, no joke.
The blades also do a good job chewing the grass up.
My mower and myself was covered in small clippings after mowing this time.
I can tell these are harder on the engine, but not a problem except it seems to be burning more gas.
Also the blades are some louder from the whir created by the gator fins.
I don't know about wet grass yet or how they keep the underneath clean or not.
If you run over bare areas the blades do suck up dust way more then the other blades.
But for green summer grass I love them so far.