Random orbit sander Bosch PEX 400 AE — handheld finishing sander for wood and paint

Bosch PEX 400 AE is a compact random orbit handheld sander engineered for finishing and smoothing tasks on wood, painted surfaces, varnish and light metal. The tool combines orbital sanding motion with a user-friendly ergonomics that helps reduce swirl marks and deliver uniform surface results. Designed for renovation, furniture preparation and general DIY applications, the PEX 400 AE enables faster material removal and more consistent finishes than manual sanding.

Advantages

The random orbit action minimizes visible sanding patterns while maintaining effective material removal. Its compact and balanced body provides comfortable handling during prolonged use. The machine includes dust extraction compatibility to keep the work area cleaner and extend abrasive life. Variable speed control allows adapting the sanding aggressiveness to different materials and finishes.

Suitable for

• Smoothing and finishing wooden furniture and joinery
• Preparing painted surfaces for repainting or touch-ups
• Removing old varnish or light coatings
• Detail sanding on flat surfaces and edges

Key specifications

• Type: random orbit handheld finishing sander
• Working principle: orbital sanding action to reduce swirl marks
• Suitable materials: wood, paint, varnish, light metal
• Ergonomics: compact, balanced housing for handheld operation
• Dust management: dust extraction compatibility for cleaner operation
• Speed control: variable speed for material-appropriate sanding

How to use

Secure the correct abrasive pad to the sander and select a grit appropriate to the task, starting with coarser grit for material removal and progressing to finer grit for finishing. Set the speed to a lower setting for delicate surfaces and a higher setting for faster material removal. Hold the sander with a firm but relaxed grip and move it evenly across the surface, keeping the tool flat and avoiding prolonged pressure in one spot to prevent uneven results. Connect to a dust extraction system or use the onboard dust collection to reduce airborne particles and maintain visibility of the work area.

Usage recommendations

Use progressively finer abrasives for a smooth finish, check surface regularly, and allow painted or varnished surfaces to cure before heavy handling. Wear appropriate eye and respiratory protection when sanding and follow the tool manufacturer’s guidance for safe operation and maintenance.