Product Description
CMT 794.305 3-Piece High-Speed Steel Planer and Jointer Knives are precision-ground cutting tools designed for woodworkers who demand a smooth, high-quality surface finish from their stationary planer or jointer. Crafted from fine European high-speed steel with a 13% tungsten content, these 12 in. knives deliver consistent, repeatable results across a wide range of wood species - from dry softwood framing stock to dense wet or dry hardwood. The set of 3 knives is sized at 12 in. x 1 1/4 in. x 1/8 in., making them a direct-fit replacement for compatible planer and jointer machines.
Key Features
- 13% Tungsten High-Speed Steel (HSS) construction - the elevated tungsten content increases hardness and heat resistance, meaning the cutting edges hold their sharpness longer and stay productive through extended use on both softwood and hardwood.
- Precision-ground from fine European high-speed steel - each knife is carefully ground for consistent geometry, so every pass delivers a flat, smooth surface finish with minimal tearout or snipe.
- Suitable for dry softwood, dry hardwood, and wet hardwood - versatile enough to handle a full range of lumber types without switching knife sets, reducing downtime and tooling cost.
- Set of 3 knives included - matches the standard knife count for most 3-knife planer and jointer heads, so you can replace the full head in one operation and maintain balanced cutting performance.
- 12 in. x 1 1/4 in. x 1/8 in. dimensions - precise sizing ensures a proper fit in compatible machines, eliminating the guesswork of adapting an off-size blade to your cutterhead.
Why This Product
- Woodworkers who run both softwood and hardwood through their planer or jointer can rely on a single set of these HSS knives instead of swapping between specialized blades - the 13% tungsten steel handles the full spectrum of wood moisture and density.
- The careful European precision grinding process means each of the 3 knives is matched in geometry, so the cutterhead stays balanced and produces a consistently smooth surface rather than leaving chatter marks or uneven thickness.
- With all 3 replacement knives supplied together, you can refresh your entire cutterhead at once - restoring full cutting performance without the risk of mixing old and new edges on the same head.
- The specific 12 in. x 1 1/4 in. x 1/8 in. profile makes these knives a reliable replacement option for planer and jointer machines that require this common knife size, reducing the need to source custom-cut blades.
Specifications
- Model Number: 794.305
- Brand: CMT Orange Tools
- Cutting Height: 1 1/4 in.
- Total Length: 12 in.
- Thickness: 1/8 in.
- Material: HS 13%W (High-Speed Steel, 13% Tungsten)
- Quantity: 3 pieces
Approved Applications
- Stationary planer machines
- Jointer machines
- Cutting dry softwood
- Cutting dry hardwood
- Cutting wet hardwood
What's Included
- 3x high-speed steel planer and jointer knives (12 in. x 1 1/4 in. x 1/8 in.)
Frequently Asked Questions
What type of steel are these planer knives made from?
These knives are made from high-speed steel with a 13% tungsten content. The tungsten content improves hardness and heat resistance compared to standard HSS, which helps the cutting edges stay sharp through demanding planing and jointing tasks on both softwood and hardwood.
Can these knives be used on wet hardwood as well as dry lumber?
Yes. The CMT 794.305 knives are suitable for cutting dry softwood, dry hardwood, and wet hardwood, making them a versatile choice for shops that work with a variety of lumber conditions without needing separate knife sets.
How many knives come in this set, and why does that matter?
This set includes 3 high-speed steel knives. Most 3-knife planer and jointer cutterheads require a complete set of matched knives to maintain balanced cutting. Replacing all 3 at once ensures consistent cutting depth and surface quality across the full width of the board.
What are the exact dimensions of each knife in this set?
Each knife measures 12 in. in length, 1 1/4 in. in cutting height (width), and 1/8 in. in thickness. Verifying that these dimensions match your machine's cutterhead slot specifications before installation is recommended.
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