HSS Planer & Jointer Knives — Replacement Blades | Infinity Tools

High-Speed Steel Planer & Jointer Knives — Precision Replacement Blades

Infinity Tools manufactures exclusive high-speed steel (HSS) replacement planer and jointer knives engineered for extended edge life and clean, consistent cuts. Each knife is forged from European D2 High Speed Tool Steel produced at the Bohler Steel Mill in Austria, then tempered in a three-chamber vacuum furnace to a Rockwell hardness of 60 HRC — a specification that maximizes abrasion resistance, edge retention, and resistance to deformation at elevated cutting temperatures.

The HSS knife lineup covers the most common planer configurations. The replacement planer knives for the DeWalt DW735 are a direct-fit solution for one of the most popular benchtop planers in use today. General-purpose sets are available in 2-piece, 3-piece, and 4-piece sets to match the knife count of your machine. A 3/32-inch thick 3-piece set is also available for machines that require the thinner knife profile.

Why Choose HSS Planer Knives Over Standard Knives?

High-speed steel at 60 HRC stays sharp significantly longer than lower-grade steel, reducing the frequency of blade changes and downtime in the shop. Unlike carbide-tipped knives, HSS knives can be resharpened multiple times, lowering the long-term cost per edge. The vacuum-tempering process used by Infinity Tools produces a consistent hardness throughout the blade cross-section rather than just at the surface, giving you more sharpenable life per knife.

D2 European High Speed Tool Steel, 60 HRC Rockwell hardness
Three-chamber vacuum furnace tempering for through-hardened performance
Available in 2-, 3-, and 4-piece sets to fit most planers and jointers
Direct-fit replacement for DeWalt DW735 and DW734 portable planers

Frequently Asked Questions

What steel grade are the Infinity Tools HSS planer knives made from?

The knives are forged from European D2 High Speed Tool Steel produced at the Bohler Steel Mill in Austria, vacuum-tempered to a Rockwell hardness of 60 HRC for maximum edge retention and abrasion resistance.

Do the Infinity Tools planer knives fit the DeWalt DW735?

Yes. The Infinity Tools replacement planer knives for the DeWalt DW735 are a direct-fit replacement designed specifically for that machine.

What is the difference between HSS planer knives and carbide-tipped knives?

High-speed steel knives can be resharpened multiple times, which lowers long-term cost per edge. Carbide-tipped knives typically hold an edge longer before needing attention but are more difficult to sharpen and cost more upfront.

Can I resharpen Infinity Tools HSS planer and jointer knives?

Yes. One of the key advantages of high-speed steel knives over disposable carbide inserts is that they can be resharpened on a flat honing stone or dedicated knife grinder, extending usable life considerably.

How do I know which set size — 2-piece, 3-piece, or 4-piece — fits my planer?

The knife count is determined by your planer's cutterhead design. Check your machine's manual or the existing knife count in the cutterhead. Infinity Tools offers 2-piece, 3-piece, and 4-piece sets.

What does Rockwell hardness 60 HRC mean for planer knives?

A Rockwell hardness of 60 HRC indicates a very hard steel that resists abrasion and holds a sharp cutting edge through more board-feet of material before dulling than softer steel — extending the interval between sharpenings.

Are these knives compatible with jointers as well as planers?

Yes. The Infinity Tools HSS knife sets are designed for use in both jointers and planers, provided the knife dimensions match the cutterhead specifications of your machine.

What causes planer and jointer knives to dull faster than expected?

Feeding lumber with embedded grit, silica, or sand dulls knives quickly. Dirty or improperly dried lumber, knots, and highly abrasive wood species also accelerate wear. Cleaning lumber before planing extends knife life significantly.

Does Infinity Tools offer a quality guarantee on HSS planer knives?

Yes. All Infinity Tools cutting products are backed by a quality guarantee. Visit the quality guarantee page for details.

What is the shipping policy for Infinity Tools planer knives?

Review the Infinity Tools shipping policy for current shipping options, lead times, and any restrictions that may apply to your order.

High Speed Steel Planer & Jointer Knives