Bosch GWG 12V-50 S PROFESSIONAL angle grinder 5 cm 15000 RPM 530 g

The Bosch GWG 12V-50 S PROFESSIONAL is a compact angle grinder with a brushless motor designed for precision grinding and finishing in confined or hard-to-reach areas. With a 5 cm grinding disc diameter, an idle speed range of 5,000–15,000 RPM and a lightweight build of 0.53 kg, this 12 V cordless tool delivers balanced performance for light to medium grinding tasks while remaining easy to handle and transport.

Advantages

The brushless motor provides improved efficiency and reduced maintenance compared with brushed alternatives, enabling longer runtime per battery charge. The small disc diameter and compact housing allow access to narrow gaps and tight corners. Low weight and ergonomic design reduce operator fatigue during extended use. Variable idle speed from 5,000 to 15,000 RPM supports controlled material removal across different surfaces.

Suitable for

• Grinding and smoothing small metal edges and weld seams
• Removing rust, paint and surface contamination in tight spaces
• Deburring plastic and metal components
• Precision surface preparation for small repair and installation jobs

Key specifications

• Grinding disc diameter: 50 mm
• No-load speed: 5,000–15,000 RPM
• Power source: 12 V battery (cordless)
• Weight: 0.53 kg
• Overall width: 50 mm
• Overall height: 115 mm
• Colours: red, blue, black
• Brushless motor technology

How to use

Fit an appropriate 50 mm grinding disc, ensuring the disc type matches the material and task. Secure the battery and check that the tool is switched off before inserting the battery. Start the grinder and select a suitable speed within the 5,000–15,000 RPM range for the material being worked on; lower speeds for delicate materials and higher speeds for faster material removal. Use steady, even pressure and keep the tool moving to avoid gouging. After use, switch off the tool, allow the disc to stop completely, remove the battery and store the tool and accessories in a dry place.

Recommendations

Use appropriate personal protective equipment such as safety glasses, gloves and hearing protection. Select discs rated for the grinder's speed and the material being processed. For extended tasks, use batteries with sufficient capacity and monitor tool temperature; allow cool‑down periods to prevent overheating. Regularly inspect discs and replace if damaged or worn.