Best Jointer Knives of 2025
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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
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Top 10 Jointer Knives
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 6-1/8 Inch Jointer Blades
The POWERTEC Jointer Blades are an essential upgrade for your woodworking projects. This set of three 6-1/8-inch knives is designed to fit Craftsman models 21705 and 922995. Each blade features a single cutting edge that ensures smooth and precise cutting, allowing you to achieve professional-quality results without tear-outs. Made from high-speed steel, these blades are perfect for cutting hardwoods and other materials at high speeds, providing durability and resistance to wear. Their design helps maintain sharpness even under high temperatures, making your work easier and more efficient.
POWERTEC 6 Inch Jointer Blades
The POWERTEC Jointer Blades are designed for those who want precision in their woodworking projects. This set includes three 6-inch knives that fit various Delta models. Each blade features a unique cutting edge that ensures smooth cuts without rough edges, making your work look professional. Made from high-speed steel, these blades can handle hardwoods and other materials efficiently, providing long-lasting sharpness and durability. With dimensions tailored for compatibility, you'll find these blades to be a convenient and reliable choice for your jointer needs.
Jointer Knives for JET JJ-6, JJ-6OS, JJ-6CS & JJ-6CSX
This set of 6-1/8-inch jointer knives is suitable for various models of jointer planers, including JET JJ-6, Delta 37, Ridgid JP0610, and Craftsman 21705. The high-speed steel material ensures a longer cutting life than conventional knife materials. The set comes with three blades and a plastic case for easy storage and transportation.
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.
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.
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 14807 8" HSS Jointer Knives Replacement Set
The POWERTEC 14807 8" HSS Jointer Knives Replacement Set includes three jointer knives that are compatible with Delta jointers. They have mounting holes for easy alignment and are designed for smooth and fast cutting action without tear outs. Made of high-speed steel, they are durable, wear-resistant, and ideal for cutting hard woods and boards at higher speeds. The knives measure 8-1/16" in length, 13/16" in width, and 1/8" in thickness.
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 13,740 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 $16.35.
The jointer knives are available for purchase. We have researched hundreds of brands and picked the top brands of jointer knives, including POWERTEC, Freud, HZ. The seller of top 1 product has received honest feedback from 709 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.