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SKU: HSSK-017

Infinity Tools High Speed Steel Planer & Jointer Knives, 3/32" Thick, 3-Pc. Set

$31.90
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Buy 3 or More Planer & Jointer Knife Sets, Receive 15% off Each.
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Premium High Speed Steel Knives For Your Planer & Jointer!

Note: These knives are 3/32" thick, 6-1/8" in length, 5/8" in height, and come in a 3-pc. set. The knives are solid, meaning they don't have any holes or slots in them. 

It may not come as a surprise that your OEM planer and jointer knives are usually made to fit a high price point but not necessarily an equally high standard of quality. Our 3-Pc. Planer and Jointer knife sets are designed to provide extended life between sharpening and are made with quality as our first priority. Each one is forged from a premium grade of European D2 High Speed Tool Steel which is produced in the famed Bohler Steel Mill in Austria. We specify a Rockwell hardness of 60 HRC to maximize abrasion resistance, increase the steel's ability to hold a cutting edge, and improve its resistance to deformation at elevated temperatures.

But using ultra-premium material is just the beginning. The production process we use sets us apart. We temper this special steel in a 3-chamber vacuum furnace and then oil quench it to form a perfectly uniform knife with added toughness & shock resistance. This exclusive process is more costly than inferior methods but it optimizes stress reduction and increases the longevity of each knife we produce. Finally, we precision grind each knife to a razor finish to ensure you get a perfect cut.

Just measure your current knives for length, height and thickness and compare them to the sizes in our product selector above. 

3-Pc. Set of Carbide Tipped Knives for DeWalt 735 Planer

Our carbide-tipped planer knives for your DeWalt 735 will last up to 10x longer than any High Speed Steel (HSS) knives on the market. They will transform your DeWalt 735 planer from a light-duty machine into a serious production planer.

Infinity Cutting Tools offers a wide variety of high-speed steel and carbide tipped planer and jointer knives.
Infinity Cutting Tools offers a wide variety of high-speed steel and carbide tipped planer and jointer knives.

We all know that just about any cutting tool you buy needs to be sharpened or honed before use. This is true with hand tools like chisels and plane irons, kitchen knives, and even jointer and planer knives. Most manufacturers state that their knives come sharp and are ready to use right out of the box and technically that's true. The knives have been sharpened at the factory and if you throw them in your machine they will work. But a little honing can bring a set of knives to the next level and extend their life and improve cut quality.

Sharpening a set of knives is not a difficult task. High speed steel (HSS) and carbide-tipped knives can be sharpened with a diamond sharpener like the M-Power model shown below. The goal here is simply to make a few strokes down the bevel of the knife and a few strokes down the back. This removes any burr that is left from the factory grinding process and refines the edge to be sharper and longer-lasting.

This handy router bit sharpener is ideal for touching up the edges of planer and jointer knives. One side features a coarse 300-grit diamond surface while the other side is a finer 600-grit.
This handy router bit sharpener is ideal for touching up the edges of planer and jointer knives. One side features a coarse 300-grit diamond surface while the other side is a finer 600-grit.

Remember, all it takes is a few light strokes with a fine diamond hone on both the bevel and back of the knife. We're simply refining the edge — not grinding a new one. There's a law of diminishing returns when it comes to sharpening HSS or carbide jointer and planer knives. Sharpening these materials to a razor-sharp edge in reality is not worth the effort. While you can most likely sharpen a HSS knife to be sharp enough to shave with, the first board through the planer will take that edge away. We recommend sharpening to roughly 600 grit. Any finer and the resulting edge gained will only last a short time.

Use a diamond hone to refine the edge and remove any burr from the back and bevel of the jointer or planer knife.
Use a diamond hone to refine the edge and remove any burr from the back and bevel of the jointer or planer knife.

Carbide-tipped router bits and saw blades have made their steel counterparts a thing of the past.  Carbide has about ten times the wear-resistance of steel plus, the benefits of a carbide planer knife are the same as these other cutting tools. While the carbide edge won't initially feel or be as sharp as a honed HSS knife the edge the carbide does have will last many times longer. The same honing process is used with carbide knives and can bring a factory-sharp or used carbide edge up to its full potential.

Carbide-tipped planer and jointer knives offer longer life than their high-speed steel counterparts.
Carbide-tipped planer and jointer knives offer longer life than their high-speed steel counterparts.

Taking a few minutes to refine the factory edge on your new Infinity planer or joiner knives is a great way to get the most out of your knives. We also recommend periodically refreshing your knives by cleaning and buildup from the knives and honing them with your diamond hone. For machines with a traditional cutter head a Diamond Knife Hone can allow you to hone your knives without removing them from the machine, but for most machines with indexed knives like the DeWalt 734 or 735 you will need to remove the knives for sharpening. Also on any indexed knife it is important to remove as little material as possible. Because the knives cannot be adjusted in the machine removing too much material from the cutting edge will shorten the knife and it will no longer reach the workpiece. This will cause the machine to not feed properly or cause other parts of the cutterhead to contact the workpiece and can cause serious damage to the planer.

Honing a carbide-tipped knife follows the same process as with high-speed steel knives: Just a couple of light passes with a diamond hone over the back and bevel are all that's needed.
Honing a carbide-tipped knife follows the same process as with high-speed steel knives: Just a couple of light passes with a diamond hone over the back and bevel are all that's needed.

The moral of the story is just like any other machine in your shop — it's important to show your joiner and planer knives a little love from time to time and keep them clean and sharp. To clean them, we recommend Blade & Bit Cleaner. To hone non-indexed knives on jointers and planers with traditional-style cutterheads, check out the Diamond Knife Hone. This tool allows you to hone the knives while still mounted in the cutterhead. With just a little effort, your old knives work like new and your new knives work better than new.

For a more detailed look at maintaining jointer and planer knives, check out this blog post and video.