Best Jointer Knives of 2026
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Jointer knives are an essential tool for any woodworker who wants to achieve a smooth and even surface on their lumber. These knives are specifically designed to fit into jointer machines and are made from high-quality steel that can withstand frequent use. Jointer knives come in various sizes and shapes, and they can be sharpened multiple times before needing replacement. With their razor-sharp edges, jointer knives can easily plane down rough or uneven surfaces, leaving behind a polished finish. Whether you're a professional woodworker or a DIY enthusiast, having a set of jointer knives in your workshop can help you achieve a professional-grade finish on all your woodworking projects.
At a Glance: Our Top Picks
Top 10 Jointer Knives
POWERTEC 14803 6" HSS Jointer Knives Replacement - Set of 3
Upgrade your woodworking with POWERTEC 14803 6" HSS Jointer Knives replacement set. These premium cutting tools fit Delta and JET models, with mounting holes for alignment and a specially designed profile for fast, precise results. Made of high-speed steel, these jointer blades cut through hard woods and boards at high speeds with sharpness, temperature protection, and wear resistance for long-lasting durability.
POWERTEC 6 Inch Jointer Blades
The POWERTEC Jointer Blades are designed for woodworking enthusiasts who seek precision and efficiency. These premium blades, compatible with the Porter Cable PC37072 and PC160JT models, feature mounting holes for easy alignment. This ensures a hassle-free setup, allowing you to focus on your project. With a single cutting edge crafted for smooth cutting, these blades minimize tear-outs, giving you professional-quality results every time. Made from high-speed steel, they can handle hard woods and other materials, offering durability and performance even at higher speeds.
POWERTEC 148020 HSS Jointer Knives for Ridgid JP0610
Upgrade your Ridgid 6-1/8-Inch jointer JP0610 with POWERTEC 148020 HSS Jointer Knives. Made of high-speed steel, these single edge blades deliver a longer cutting life. Each set includes three blades, packaged in a convenient plastic case. Each blade measures 6-1/8-Inch x 11/16-Inch x 1/8-Inch.
Freud C350: 6" High Speed Steel Jointer Knives
Upgrade your jointer with Freud C350, featuring 6" length, 3 pieces, 1/8" thickness, and 5/8" width. The knives are precision machined and pre-ground to a sharp edge, delivering the smoothest cut. Made of premium high-speed steel, the knives offer the keenest edge and longest lifespan.
POWERTEC 6 Inch Jointer Blades
The POWERTEC Jointer Blades are premium cutting tools designed for woodworking enthusiasts. These 6-inch blades are compatible with various Delta jointers, making them versatile for your projects. Each blade features mounting holes, allowing for easy and precise alignment during installation. They are crafted from high-speed steel, enabling you to cut through hardwoods and other materials at impressive speeds while maintaining sharpness and durability. With a single cutting edge designed for smooth action, you can achieve professional-looking results without tear outs, enhancing the quality of your work.
POWERTEC 6" Jointer Blades for Craftsman 21788
The POWERTEC 6" Jointer Blades are designed to give you smooth and precise cuts on your woodworking projects. These blades come in a set of two and fit perfectly with Craftsman 21788 and CMEW020 jointers, so you won’t have to worry about compatibility. Each blade has mounting holes that help you line them up easily, ensuring quick and accurate installation. Made from high-speed steel, these blades stay sharp longer and can handle hardwoods and other materials at faster cutting speeds, saving you time and effort while maintaining durability.
Goldblatt RED 4-in-1 Masonry Brick Jointer Tool
The Goldblatt RED Brick Jointer comes with four interchangeable steel barrels in different sizes, allowing you to choose the perfect width for your brick joints. This flexibility helps you handle various masonry tasks with ease. The cast aluminum handle provides a comfortable grip and extra space for your knuckles, making it easier to use for extended periods without discomfort. Its hardened stainless steel barrels are built to last, giving you a durable tool that won’t wear down quickly. Ideal for professionals, this jointer helps you create neat, strong joints that improve both the look and strength of your brickwork.
HYDE 06878 Joint Knife
This joint knife comes from China and has a model number of 06878. Measuring at 6 inches, it is flexible and has a package dimension of 18.0" L x 18.0" W x 21.0" H. Its weight is 1.0 lb, which makes it easy to handle. This knife is categorized as a putty knife, which makes it a useful tool for filling gaps and cracks in construction or DIY projects.
POWERTEC 6-Inch HSS Jointer Knives for Delta 37-070 and JT160
This set of two jointer knives is a replacement for Delta 37-372 and fits Delta 6-Inch jointer 37-070 and JT160. Made of High Speed Steel, these knives offer longer cutting life and feature a single edge. The blade dimension is 6-Inch x 7/8-Inch x 1/16-Inch.
Freud C460 Planer and Jointer Knives
The Freud C460 Knives are designed for precision and durability, making them an excellent choice for your woodworking projects. With a length of 8 inches and a thickness of 1/8 inch, these knives are precision machined to ensure the best cutting results. The premium high-speed steel construction provides a sharp edge that lasts longer, allowing you to work more efficiently. Pre-ground to a razor-sharp finish, these knives deliver smooth cuts, enhancing the quality of your work. Plus, they come with a limited lifetime warranty, giving you peace of mind with your purchase.
Frequently Asked Questions (FAQs)
1. What are the knives on a jointer called?
The jointer consists of a worktable through which the revolving blade (called the cutterhead) of the tool protrudes.
2. How sharp should jointer knives be?
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.
3. What angle do you sharpen jointer knives?
If I remember correctly the angles for the planners and jointers are usually between 40 and 50 degrees, but Jeff was right different manufactures may choose different angles based on the machine characteristics and blade thickness and width so it would be safer.
During our jointer knives research, we found 24 jointer knives products and shortlisted 10 quality products. We collected and analyzed 14,290 customer reviews through our big data system to write the jointer knives list. We found that most customers choose jointer knives with an average price of $19.74.
The jointer knives are available for purchase. We have researched hundreds of brands and picked the top brands of jointer knives, including POWERTEC, Freud, Goldblatt, Hyde. The seller of top 1 product has received honest feedback from 405 consumers with an average rating of 4.8.
Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.