Electric multifunction sharpener STHOR 73473 150W 5500 RPM for blades and tools

STHOR 73473 is an electric multifunction sharpener with a 150W motor and a no-load speed of 5,500 RPM, intended for sharpening blades, knives and small hand tools. The device uses a motor-driven grinding head to deliver consistent rotary sharpening and is compact enough for home workshops, garden tool maintenance and light professional sharpening tasks. Its design focuses on providing stable rotational speed and controlled contact between the workpiece and abrasive surface for reproducible edge geometry.

Advantages

The electric multifunction sharpener combines a comparatively powerful 150W motor with a high rotational speed to achieve efficient material removal and controlled finishing. Its compact footprint and straightforward operation reduce setup time compared with stationary bench grinders, while the motor-driven grinding head ensures even, repeatable sharpening without the need for manual stroking. The unit is suitable for a variety of small blades and hand tools, offering consistent results when used with suitable abrasives and proper technique.

Suitable for

• Kitchen knives and pocket knives sharpening
• Garden tools such as shears and pruners
• Small hand tools like chisels, plane irons and screwdrivers (light maintenance)
• Home workshop and hobby sharpening tasks

Key specifications

• Power input: 150W
• No-load rotational speed: 5,500 RPM
• Motor-driven rotary grinding head for consistent sharpening
• Designed for blades, knives and small hand tools
• Compact form factor suitable for benchtop or workshop use

How to use

Secure the sharpener on a stable surface before use. Select an appropriate abrasive wheel or attachment for the material and desired finish, and mount it according to the manufacturer’s instructions. Switch on the motor and allow it to reach the rated speed. Hold the blade or tool at a steady angle against the grinding head and apply light, even pressure while moving the workpiece across the abrasive surface to avoid localized overheating or excessive material removal. Check the edge frequently and stop periodically to inspect the geometry. After sharpening, clean the tool and, if required, remove burrs using a strop or fine abrasive.

Usage recommendations

Use the sharpener with proper personal protective equipment, including eye protection and gloves as appropriate. Choose abrasive wheels suitable for the specific blade material and hardness, and avoid excessive pressure or prolonged contact that can overheat the cutting edge. For best results, combine the motor-driven sharpening with hand finishing such as stropping to refine the bevel and remove residual burrs.