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Forum topic by Pizzadave posted 06-05-2020 01:35 AM 279 views 0 times favorited 18 replies Add to Favorites Watch
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Pizzadave

125 posts in 852 days


06-05-2020 01:35 AM

Topic tags/keywords: powermatic15 planer knifeselection

Hi. I just bought 3brand new knives for my powermatic 15 from amazon. They have edges on both sides for double the life. They are absolute garbage. Easily nicked and pretty expensive. At first I thought it was my knive set up but after re-setting them to pretty near perfect the knives nicked again and left an unpleasant look on my board. I am returning them tomorrow. Any experience on the best set of knives for this machine? Infinity sells carbide ones for 180$. Seems high but are they worth the price? Any information would be helpful. Thanks.
DP

-- Dave, NY, It works-It really does!


18 replies so far

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Aj2

3075 posts in 2568 days


#1 posted 06-05-2020 02:26 AM

I’ve used infinity carbide in a DeWalt 735 bench top planer and they were great.
Are the pm knives indexed with pins in the head? If you do try them let me know and I’ll post a pic of a jig to sharpen them. It’s so easy you’re going to wonder why you didn’t think of it. :)

Good Luck

-- Aj

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Pizzadave

125 posts in 852 days


#2 posted 06-05-2020 02:29 AM

I have 3 straight blades. I don’t think they are the ones you are referring to.

-- Dave, NY, It works-It really does!

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Pizzadave

125 posts in 852 days


#3 posted 06-05-2020 02:49 AM

Oh. I googled the knives you are referring to. I have not tried those yet.

-- Dave, NY, It works-It really does!

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Aj2

3075 posts in 2568 days


#4 posted 06-05-2020 03:20 AM

I pay about 80 dollars give or take for a set of [email protected] 12 inch knives for my jointer T1 hss and m2 is a bit less I think. 180 is not too bad for 3 @ 15 inches.
But only if they come sharp and balanced ready to work.

-- Aj

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Pizzadave

125 posts in 852 days


#5 posted 06-05-2020 03:26 AM

Ya. I’m torn between t-1 and carbide. T-1 is much cheaper. 80$ For T1 and 180$ for carbide. Carbide are infinity fools and the t-1 price is from American Knife company. 100$ worth the carbide tip??

-- Dave, NY, It works-It really does!

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Aj2

3075 posts in 2568 days


#6 posted 06-05-2020 04:31 AM

T1 is nearly impossible to get in the states. Are you sure it’s t1 and not m2.
What it’s worth really depends on what you plan of running through your machine. Difficult woods or reclaimed without metal carbide for sure.
Domestic woods soft and hard T1 if it clean .
It not talked about too much I’m often surprised to see how other woodworkers handle their boards. Soft woods can pick up rocks so easily. On their faces and even worse the ends. I’m very careful to not add dirt . So I get very long time between Knife changes. Domestic wood only for me.
Good Luck

-- Aj

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Pizzadave

125 posts in 852 days


#7 posted 06-05-2020 04:37 AM

Thanks for the info. I really appreciate it. I have not looked at the availability of t-1 but I guess I’m going to have to do some more research. By the way… I use mainly domestic wood as well.

-- Dave, NY, It works-It really does!

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CaptainKlutz

3163 posts in 2265 days


#8 posted 06-06-2020 01:21 PM

Can still get T1 blades from Oella Saw:
https://www.oellasawandtool.com/categories/Planer-%26-Jointer-Knives/T1%252dHSS-Sets-/
They also tend to be one of the cheapest sources shipped to my area.

The A2 blades they carry last almost as long as the T1 blades that I use on my 15” planers. Standard M2 HSS work OK, but tend to get nicks faster with really hardwood (oak+), or with large hard knots than A2 or T1.

Note that the PM15 double side blade is unique. Most replacements you find will be one sided, and they work fine. When you do find a non-PM replacement double sided blade, the quality and durability is junk. BTDTGTTS

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

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Pizzadave

125 posts in 852 days


#9 posted 06-06-2020 01:35 PM

Great information! Thank you. The double-sided blades that I purchased from Amazon definitely fell into the category of junk. Lesson learned and will look into the link you sent.

-- Dave, NY, It works-It really does!

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Pizzadave

125 posts in 852 days


#10 posted 06-06-2020 01:42 PM

I noticed that on the site sent have 15-1-1/8 blades but they do not mention they work on a powermatic. When I search using brand they don’t have powermatic listed at all. This is most likely as dumb question but do all 15-1-1/8 inch blades work on my pm?

-- Dave, NY, It works-It really does!

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CaptainKlutz

3163 posts in 2265 days


#11 posted 06-07-2020 01:41 AM

Most all the older Taiwan built 15” planers are from the same mfg (despite color/cabinet), and same straight blades fit them all.

I used standard 15” x 1” x 1/8” blades in the PM15 I rebuilt and used for about year before I upgraded to a 20”. Had a spare set laying around from another 15” Delta I owned previously. Standard knife jig works with no issue.

Oella Saw has online discount code usually, and new blades are only a few $$ more than my sharpener wants to clean up old blades (he’s too expensive). Have one sharpener that is 25% cheaper per inch, but last set had difference widths and cutter head vibrated. Adding more noise and vibration to a planer is not worth the bargain IMHO.

YMMV

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

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Pizzadave

125 posts in 852 days


#12 posted 06-07-2020 01:44 AM

Great. Thank you!!

-- Dave, NY, It works-It really does!

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Aj2

3075 posts in 2568 days


#13 posted 06-07-2020 01:56 AM

Dave are you going to order a set from the site the Captain posted? If you do post back to the thread I’m interested to see if they have T1.
Good Luck

-- Aj

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Pizzadave

125 posts in 852 days


#14 posted 06-07-2020 01:59 AM

I did research the site and it says that they are available and like CaptainKlutz said, the prices are pretty good. I’m still waiting for my return verification from amazon then I’m going to buy some.

-- Dave, NY, It works-It really does!

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Aj2

3075 posts in 2568 days


#15 posted 06-07-2020 03:13 AM

Cool I hope it works out. T1 is hard to find in matching sets.
I did manage to find a set of t1 in Japanese hss it’s nice stuff.
Skh2

-- Aj

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