Product Description
CMT Solid Carbide Knives for Portable Planers deliver precision material removal in softwood, hardwood, and plywood applications. These 80.5x5.5x1.1mm replacement blades are engineered from solid tungsten carbide (HWM material grade) for long-lasting edge retention in demanding portable planer use. Sold as a 2-piece set, these knives are a direct-fit solution for electric hand planers requiring 80mm knife length, making blade replacement straightforward and reliable.
Key Features
- Solid carbide (HWM) construction - tungsten carbide material holds a sharper edge longer than standard steel blades, reducing downtime between replacements during heavy planing work.
- 80.5x5.5x1.1mm precision dimensions - exact tolerances ensure consistent planing depth and a flat, smooth surface finish on every pass.
- Compatible with softwood, hardwood, and plywood - versatile cutting performance across common lumber types means one set of knives handles a wide range of jobsite and shop applications.
- Designed for portable planers - sized specifically for handheld electric planers requiring 80mm knives, allowing fast, tool-free or minimal-effort blade swaps in the field.
- 2-piece pack - two knives included so both sides of the planer head can be replaced at the same time, maintaining balanced cutting performance.
Why This Product
- Solid carbide construction means these knives stay sharp through more board footage in hardwood and plywood than lower-grade alternatives - reducing how often you stop to swap blades mid-project.
- The 80.5mm length and 1.1mm thickness match the knife slot dimensions found on portable 80mm planers, making this a reliable replacement option without modification or shimming.
- Performance in plywood - a material notorious for dulling blades quickly due to glue lines and cross-grain veneers - is a stated application, making these knives a practical choice for trim carpenters and woodworkers working with sheet goods.
- Buying as a matched 2-piece set ensures both knives in the planer head are replaced simultaneously, preventing the uneven cutting and snipe that can result from mismatched blade wear.
Specifications
- Manufacturer Part Number: 790.805
- Brand: CMT Orange Tools
- Total Length: 80.5mm
- Cutting Depth: 5.5mm
- Cutting Height: 5.5mm
- Teeth Thickness: 1.1mm
- Material: HWM (Solid Carbide / Tungsten Carbide)
- Quantity: 2-piece set
Approved Applications
- Planing softwood
- Planing hardwood
- Planing plywood
- Surface planing with portable electric planers
What's Included
- 2x Solid carbide planer knives (80.5x5.5x1.1mm)
Frequently Asked Questions
What material are these planer knives made from?
These knives are manufactured from HWM-grade solid carbide, also known as tungsten carbide. This material provides superior hardness and edge retention compared to standard high-speed steel knives, making it well suited for planing both hardwood and abrasive materials like plywood.
What planer knife dimensions do these replace?
These knives measure 80.5mm in total length, 5.5mm in cutting depth, 5.5mm in cutting height, and 1.1mm in thickness. They are intended for portable planers requiring 80mm-class replacement knives. Always verify your planer's knife slot dimensions before installation.
Can these knives be used on plywood and engineered wood panels?
Yes. The CMT 790.805 knives are rated for use in plywood in addition to softwood and hardwood. The solid carbide construction handles the abrasive glue lines and cross-grain layers found in plywood better than softer blade materials.
How many knives come in one pack?
Each pack contains 2 solid carbide knives. Most portable planers use two knives mounted in the cutterhead, so purchasing this set provides a complete replacement for both positions at the same time.
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