In one of the mag's I read about a comparison of table saw blades and the
bottom line was that the Amana Prestige 40T (H-ATB) model PR1040 was as good
or better than a Forrest WWII. I was at a local dealers yesterday and sure
enough, he had a sign on the Amana blade display touting this same claim.
I just happen to be looking for a new blade for an upcoming project so I
picked it up. I also own a WWII 30T rip blade which is one sweet blade so I
was certainly interested in doing a comparison test.
I checked out my tablesaw alignment using a TS-Aligner JR (oh yeah - thanks
for the DVD Ed....) and everything was spot on. Picked a board, jointed /
planed it and ready for the test cuts. I made test cuts using the same
board with both the WWII and the Amana blade using the same technique etc.
Made cuts with and without a 5" stiffener. Both blades are 1/8" kerf blades.
The WWII blade is 3 years old and has not been sharpened yet. Amana blade
is spankin' new......
1. The Amana 40T blade is noticeably inferior (using just the naked eye)
with it leaving swirl marks that are far from being glue-joint ready and
would need to be sanded considerably to get rid of the swirl marks from the
blade. I repeated this test six times, with and without a stiffener.
2. Did the same testing with the WWII 30T blade and it takes a magnifying
glass to see any saw marks at all. With the naked eye, it looks like the
edge just came off the jointer - flat and clean.
Okay - maybe I got a bad blade. Did some cursory checks of the blade and
found some carbide teeth that are +/- .003" from a reference tooth. The
WWII teeth measured a +/- of .0015 max. Runout of both blades was ~.002"
max. Only thing I can see is that the High-ATB cut may be causing the
Back to the dealer with test cuts in-hand. He agreed the blade must be
defective and gave me a new blade from a different batch he just received.
3. Repeated the same tests and got the same results. No improvement on the
I'm now headed back to the dealer - again with the test cuts in-hand and see
if he can order me a WWII 40T. Yep, I know I can order it for less on-line
but he's a local business and if we don't buy locally, he may not be so
local after awhile....
Does anyone remember what magazine that blade comparison was done in?