chuck-issue Troubleshooting

Chuck won't grip on the Bosch GSR12V

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

The chuck slips or won't tighten, often from wear or debris in the jaws.

How to fix Chuck won't grip

Clean the chuck

Clean the chuck jaws and remove any debris.

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

Difficulty: ★ Est. 5 min

Replace the chuck

If the chuck is worn, replace it with a genuine one.

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

Difficulty: ★★★ Est. 30 min

Parts needed: Bosch GSR12V Chuck

Replacement parts for the Bosch GSR12V

Bosch GSR12V Replacement Battery Bosch GSR12V Charger Bosch GSR12V Carbon Brushes Bosch GSR12V Chuck Bosch GSR12V Gearbox Assembly Bosch GSR12V Tool Case

← All Bosch GSR12V error codes

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