10 Best Belt Sander For Knives 2025 in the United States

The JET 6" x 48" Belt and 12" Disc Sander (Model JSG-6DCK) offers a comprehensive set of features ideal for knife-making and other sanding tasks. It comes with a sizable belt size of 6 inches by 48 inches, allowing for ample surface area to work on larger pieces of material. The motor power of 1-1/2 HP ensures robust performance, capable of handling heavy-duty sanding jobs without faltering. A key benefit is the dual thumbscrew belt tracking adjustment, which helps keep the belt aligned during use, critical for precision work like knife sharpening.

The machine also includes a graphite-covered steel platen that runs cooler, prolonging the life of both the machine and the sanding belt. This sander excels in build quality, featuring a heavy-duty steel open-style stand that provides solid support, and precision-ground cast iron tables that can be adjusted for different sanding angles. Ease of use is enhanced by the push-button start switch that accepts a safety padlock for added security.

However, at 229 pounds, the sander is quite heavy, making it less portable. Additionally, while it does have a speed of 1725 RPM, it lacks variable speed control, which might be a limitation for those needing different speeds for various tasks. The warranty is decent, offering a 5-year cover, though this drops to 2 years for commercial or industrial use. Although not the most modern model, it remains a reliable choice for serious knife makers and woodworkers.

The JET Variable Speed 8" Grinder and 4" x 36" Belt Sander (Model IBGB-436VS) is a robust and versatile tool suitable for those needing a durable and efficient belt sander for knives. It features an industrial-strength construction with heavy-duty aluminum and cast iron materials, making it highly durable for demanding usage. The 1 HP motor provides ample power, and the machine's variable speed control, equipped with a digital readout, allows for precise speed adjustments up to a maximum of 3600 RPM, which is crucial for knife sharpening tasks that require different speed settings based on the material being worked on.

The belt size of 4" x 36" is standard and sufficient for various sharpening needs, while the large spark guard eye shields enhance safety during operation. Additionally, the rubber-sealed bearings ensure maintenance-free sanding and prolonged machine life with pre-lubricated ball bearings that prevent wear and tear. Ease of use is supported by the included components such as spark guards, tool rests, and the sanding belt itself.

The machine's weight of 74 pounds might make it challenging to move around easily, and it may not be ideal for those with limited space due to its dimensions of 23.22"L x 12.22"W x 20.75"H. It is corded electric with a voltage requirement of 115V, which should be compatible with standard outlets. This product would benefit users who require a sturdy and efficient belt sander for regular, heavy-duty knife sharpening tasks.

The JET Variable-Speed 2" x 48" Belt & 9" Disc Sander is a solid choice for knife sharpening and general sanding tasks. Its 2 by 48-inch belt size is a common and versatile size that works well for knives, giving you enough surface area for shaping and sharpening blades. The 1 horsepower motor provides strong power to handle tough sharpening jobs without bogging down. Variable speed control is a helpful feature, allowing you to adjust the belt speed to match different blade materials or stages of sharpening, which is important for avoiding overheating or removing too much material too quickly.

The belt tracking system is described as easy to use, which means you can quickly align the belt without hassle, a key convenience when working on precise knife edges. Build quality is impressive, with a heavy cast iron base and solid cast iron platen that reduce vibration and provide a stable, rigid grinding surface—this stability is important for detailed, controlled sharpening. The aluminum disc helps keep heat down, extending the life of your sanding belts, and the included dust collection ports help keep your workspace cleaner.

On the downside, the sander weighs 74 pounds, making it less portable and better suited as a stationary shop tool rather than something you move around often. It runs on standard 115V power but requires a corded connection, so it’s not cordless or battery-operated. Some users might find the size and weight cumbersome for very small or delicate knife work compared to smaller, specialized knife sharpeners. This JET belt sander is well-built and powerful, with features that cater well to knife sharpening needs, especially if you want a durable, stable, and variable-speed tool for your workspace. It’s best for users who need a robust, semi-professional unit and don’t mind the weight and size.