Planer Knives Proxxon 27042 HSS reversible pair for DH 40

Replacement HSS planer knives in a pair designed for the Proxxon DH 40 electric planer. These reversible high-speed steel blades restore cutting performance after wear, allowing continued planing and smoothing of wood surfaces. The knives are manufactured for compatibility with the DH 40 model and provide a durable cutting edge suitable for workshop and DIY tasks.

Advantages

High-speed steel construction offers wear resistance and retains sharpness longer than standard carbon blades. The reversible design doubles service life by allowing both edges to be used. Blades are manufactured to match the original cutter geometry for consistent surface finish and safe fit in the DH 40 planer drum. Installation of the replacement knives is intended to restore planing quality and reduce tear-out on timber and softwood boards.

Suitable for

• Renewing worn knives in the Proxxon DH 40 electric planer
• Planing and smoothing softwood and hardwood surfaces
• Workshop maintenance and small-scale carpentry tasks
• DIY projects requiring precise surface finishing

Key specifications

• Material: high-speed steel (HSS)
• Type: reversible planer knives, pair
• Intended use: single-sided/flip-over reversible cutting edges
• Compatibility: designed for use with the Proxxon DH 40 electric planer
• Application: planing and smoothing wood surfaces

How to use

Before replacing the knives, disconnect the planer from the power supply and follow the manufacturer's instructions for disassembly of the cutter drum. Remove the retaining screws or clamps, take out the old knives, and inspect the drum for debris or damage. Fit the HSS knives with the cutting edge oriented correctly for the rotation direction of the drum, tighten fasteners to the specified torque, and check clearance and balance before reconnecting power. Test the planer on a scrap piece of wood to confirm correct installation and surface finish.

Usage recommendations

Use appropriate personal protective equipment when handling and fitting blades. Maintain sharpness by replacing or reversing knives when cutting quality diminishes. For best results, set correct cutting depth and feed rate for the timber type; avoid excessive depth of cut to reduce load on the motor and extend blade life.