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Forrest WWII 30T....the other Forrest blade

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Review by knotscott posted 03-13-2009 08:02 PM 3572 views 0 times favorited 11 comments Add to Favorites Watch
Forrest WWII 30T....the other Forrest blade No-picture-s No-picture-s Click the pictures to enlarge them

As a long time satisfied owner of the 40T WWII, the lesser known 30T WWII is a blade that I’ve wanted to try for quite a while. A rare sale price of $64 shipped was all the encouragement I needed. It’s 40T big brother is more popular and very highly rated across the industry, but we hear very little about this extremely capable 30T version. As far as I’m concerned, the silence should end…this is a terrific blade! The WW10307100 features the same geometry, materials of construction, and precision manufacturing that the 40T does….20 degree positive hook angle for a good feedrate while ripping thicker materials, a 15 degree alternate top bevel (ATB) tooth grind for slicing fibers cleanly, low side clearance for polished edges, and C4 micrograin carbide for a very sharp edge and long edge life. Like the 40T WWII, it’s available in both a 3/32” (0.100”) thin kerf (TK) and a 1/8” (0.125”) full kerf. Both blades are manufactured in the USA.

The 30T WWII has 25% fewer teeth than it’s 40T counterpart. From a theoretical perspective, fewer teeth means faster ripping and rougher cut if all else is equal, and in this case, all else is exactly equal. The inverse is also true…more teeth means a finer cut but slower feed rates and more tendency to tax the saw and burn wood. There’s always a tradeoff for every different design element. The logical concern for a discerning woodworker would be how much rougher the cut really is with the 30T Forrest. My answer is a resounding “not much”! I own and have tried several top notch general purpose and combination blades…prboably approaching “most” by now (as well as several dedicated rip and crosscut blades), and had the opportunity to compare the 30T WWII directly to a fairly new 40T WWII, a nearly new Infinity 50T, and a fairly new Freud LU88 60T, all in excellent shape. I’m pleased to report that the cut quality of the 30T Forrest doesn’t lag far behind ….even without the use of a stabilizer, which Forrest suggests. (I’ve never noticed an improvement from one, so I’ll suggest saving your money unless you’ve got unacceptable runout in your setup.) After marking, crosscutting, and ripping several tests pieces of red oak, birch plywood, cedar, walnut, and cherry, I found it a little difficult to distinguish between the cuts between the various blades. I didn’t perform a “statistically significant” number of cuts, but some patterns did tend to show up over time, and on the whole, things fell mostly into a predictable pattern of results, with finer tooth marks from the higher count blades, and easier feedrate and more visible saw marks from the lower tooth blades….I do want to reiterate that the differences in cut quality are not significant and are somewhat difficult to discern. In thick materials however, the performance ratings reverse themselves, and some things became more noticeable. The easy feed rate of the WWII 30T is readily noticeable in thicker ripping. As the 60T LU88 starts to bog down and causes burns in 2” walnut, the 30T WWII loafs right through it and still leaves an acceptably clean glue line cut. Combine the cut quality and reduced feed pressure of the thin kerf 30T WWII, which takes 25% less material than the full kerf, and you’ve got yourself a clean cutting remedy to ripping thicker materials on an underpowered saw. It performs very closely to the 40T WWII but feels like I’ve upgraded the motor. I can also envision the 30T WWII being invaluable for ripping thick exotic hardwoods where cut quality matters, burning is a problem, and material cost is a factor. The 30T WWII starts to show it’s limitations on ultrafine crosscuts and veneered plywoods, where a specialty blade would be better suited. It crosscuts pretty well most of the time for less critical applications, but is not quite as adept where the smoothest fine crosscuts are required…but neither are most 40T or 50T general purpose blades, so you actually lose very little capability vs more traditional general purpose blades with the 30T. The 30T WWII is a terrific mate to a blade like the 60T Infinity 010-060 Hi-ATB blade, WWI, or Freud LU88, but should impress in the majority of applications all by itself. The 30T WWII is also a much more versatile choice than a GLR 30T ripper like the Freud LM74 or CMT 203.030.10….it gives glue ready cuts, rips efficiently in much thicker materials, and can handle an occasional crosscuts.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....




View knotscott's profile

knotscott

5513 posts in 2063 days



11 comments so far

View SteveMO's profile

SteveMO

54 posts in 2095 days


#1 posted 03-13-2009 09:06 PM

Outstanding and informative review. The blade seems to warrant a closer look. Thanks for a fine review.

View Brad_Nailor's profile

Brad_Nailor

2531 posts in 2644 days


#2 posted 03-14-2009 12:08 AM

Great review..I have always pondered what the differences were between these blades..thanks for doing all the leg work!

-- http://www.facebook.com/pages/DSO-Designs/297237806954248

View mnguy's profile

mnguy

161 posts in 2085 days


#3 posted 03-14-2009 09:15 PM

I second Steve’s comments – extremely well conducted and written review. I have been considering an upgrade to my jobsite saw blade, and this one goes to the front of the line.

View Douglas Bordner's profile

Douglas Bordner

3966 posts in 2751 days


#4 posted 03-14-2009 10:00 PM

Superb review. Thanks!

-- "Bordnerizing" perfectly good lumber for over a decade.

View Don Newton's profile

Don Newton

712 posts in 2306 days


#5 posted 03-15-2009 12:27 AM

Impressive review….thanks!

-- Don, Pittsburgh

View lou's profile

lou

340 posts in 2130 days


#6 posted 03-15-2009 05:57 PM

Great review.I will and one to my collection now.thanks

View knotscott's profile

knotscott

5513 posts in 2063 days


#7 posted 03-15-2009 06:37 PM

Thanks to all for your comments. Hope any who try the 30T WWII find is as useful as I have.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View Maximillian's profile

Maximillian

80 posts in 1968 days


#8 posted 06-03-2009 04:45 AM

Darn. I had just made my mind up on a 40T WWII. Now I need to do more thinking

-- Max, New Zealand

View a1Jim's profile

a1Jim

112300 posts in 2264 days


#9 posted 06-03-2009 05:45 AM

thanks for the review

-- http://artisticwoodstudio.com Custom furniture

View Beginningwoodworker's profile

Beginningwoodworker

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#10 posted 09-05-2010 02:22 AM

Thanks for the review.

-- CJIII Future cabinetmaker

View matt garcia's profile

matt garcia

1832 posts in 2359 days


#11 posted 09-05-2010 02:26 AM

Thanks for a great review!!

-- Matt Garcia Wannabe Period Furniture Maker, Houston TX

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