Product Description
CMT 794.203 3-Piece High-Speed Steel Planer and Jointer Knives - 8 in. Length are precision-ground replacement blades engineered for stationary planers and jointers. Carefully ground from fine European high-speed steel with a 13% tungsten content, these 8 in. x 3/4 in. x 1/8 in. knives deliver smooth, high-quality surface finishes across a wide range of lumber types. Whether you are surfacing dry softwood, dry hardwood, or wet hardwood, this set of 3 blades is built to maintain a consistent, sharp edge through demanding shop use.
Key Features
- High-Speed Steel with 13% Tungsten (HS 13%W) construction - the elevated tungsten content gives these planer knives superior hardness and edge retention, reducing the frequency of resharpening during heavy production runs.
- Suitable for dry softwood, dry hardwood, and wet hardwood - versatile material compatibility means one set of jointer knives handles the full range of common lumber species and moisture conditions found in professional and hobbyist shops.
- Carefully ground from fine European high-speed steel - precision grinding ensures each knife meets tight dimensional tolerances, producing flat, tear-out-free planed surfaces with minimal feed marks.
- Set of 3 knives included - a complete replacement set means all cutting positions in your planer or jointer head are refreshed at once, maintaining balanced cuts and consistent planing depth across the full board width.
- 8 in. x 3/4 in. x 1/8 in. knife dimensions - sized to match the specifications required by planers and jointers accepting this standard knife profile, making installation and alignment straightforward.
- High-quality finish output - the combination of precision grinding and quality steel produces smooth surfaces that reduce or eliminate the need for extensive hand-sanding after machine planing.
Why This Product
- Replacing all 3 knives as a matched set from CMT ensures balanced cutter head rotation and uniform depth of cut - eliminating the snipe and uneven surfaces that result from mixing worn and fresh blades.
- The 13% tungsten high-speed steel formula is specifically suited to both wet and dry hardwood, making these jointer and planer knives a practical choice for shops that process mixed lumber without swapping tooling between jobs.
- Precision grinding from fine European HSS stock means each knife arrives ready to cut at a consistent edge geometry - reducing setup time and delivering professional-grade surface quality right from the first pass.
- With an 8 in. blade length in a standard 3/4 in. x 1/8 in. profile, these replacement knives are a direct fit for compatible planer and jointer machines, simplifying the sourcing process for routine maintenance and blade changes.
Specifications
- Manufacturer Part Number: 794.203
- Brand: CMT Orange Tools
- Total Length: 8 in.
- Cutting Height: 3/4 in.
- Thickness: 1/8 in.
- Material: HS 13%W (High-Speed Steel, 13% Tungsten)
- Quantity: 3 pieces
Approved Applications
- Planing
- Jointing
- Surface preparation
- Cutting dry softwood
- Cutting dry hardwood
- Cutting wet hardwood
What's Included
- 3x CMT 794.203 high-speed steel planer and jointer knives (8 in. x 3/4 in. x 1/8 in.)
Frequently Asked Questions
What machines are these CMT planer knives compatible with?
These 8 in. x 3/4 in. x 1/8 in. high-speed steel knives are designed for use with stationary planer and jointer machines that accept this standard knife size. Always verify your machine's knife slot dimensions before installation to confirm fitment.
Can these knives be used on wet lumber?
Yes. The CMT 794.203 knives are suitable for cutting dry softwood, dry hardwood, and wet hardwood, making them appropriate for shops that work with lumber at varying moisture levels without the need to change tooling.
Why does the set include 3 knives?
Most planer and jointer cutter heads use 3 knives evenly spaced around the head. Replacing all 3 knives at the same time with a matched set maintains cutter head balance, ensures uniform cutting depth, and produces consistent surface quality across the full width of the board.
What does the 13% tungsten content in the steel mean for performance?
The 13% tungsten formulation is a defining characteristic of this high-speed steel grade. Tungsten contributes to the hardness and heat resistance of the cutting edge, allowing the knives to maintain sharpness longer during continuous planing and jointing operations compared to lower-alloy alternatives.
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