Introduction
This manual provides comprehensive instructions for the safe operation, maintenance, and care of your BOSCH GSR12V-300FCB22 12V Max Drill/Driver with the 5-In-1 FlexiClick System. Please read this manual thoroughly before using the tool to ensure proper function and safety.
Safety Information
Always observe basic safety precautions when using power tools to reduce the risk of fire, electric shock, and personal injury.
- Read all instructions: Familiarize yourself with the tool's operation and safety guidelines.
- Wear eye protection: Always use safety goggles or safety glasses with side shields.
- Keep work area clean: Cluttered areas invite accidents.
- Avoid dangerous environments: Do not use power tools in damp or wet locations, or expose them to rain.
- Secure workpiece: Use clamps or a vise to hold the workpiece. This is safer than using your hand and it frees both hands to operate the tool.
- Maintain tools with care: Keep cutting tools sharp and clean for better and safer performance. Follow instructions for lubricating and changing accessories.
Package Contents
Your BOSCH GSR12V-300FCB22 kit includes the following components:
- BOSCH GSR12V-300FCB22 12V Max Drill/Driver
- (2) 2.0 Ah Batteries
- Battery Charger
- Locking Bit Holder Attachment
- Keyless Chuck Attachment
- Offset-Angle Attachment
- Right-Angle Attachment
- Carrying Case

Image: The BOSCH GSR12V-300FCB22 12V Max Drill/Driver shown with its various FlexiClick attachments, including the keyless chuck, offset-angle, right-angle, and locking bit holder, along with the main drill body.
Product Features
The BOSCH GSR12V-300FCB22 is engineered with several features to enhance performance and versatility:
- Two-speed Transmission: Offers a high-power setting at 0-460 rpm for driving screws and a high-speed setting at 0-1,750 rpm for drilling.
- EC Brushless Motor: Delivers extended runtime and upgraded power with 300 in.-lbs. of torque.
- 5-In-1 FlexiClick System: Provides outstanding versatility with interchangeable attachments for various applications.
- 20+1 Clutch Settings: Allows for precise torque adjustment for accurate screw driving and preventing overtightening.
- Compact Housing: Designed to accommodate hard-to-reach work areas.
- LED Light: Illuminates low light or dark work areas for improved visibility.
- Magnetic Bit Holder: Provides the shortest head length for basic driving without an attachment.
- Belt Clip: Enhances portability and keeps the tool within reach.

Image: A detailed diagram highlighting the main components and features of the BOSCH GSR12V-300FCB22, including the two-speed transmission, EC brushless motor, 20+1 clutch settings, LED light, compact housing, and belt clip with bit holder.
Setup
Attaching and Removing Batteries
- To attach a battery, align the battery with the base of the tool and slide it in until it clicks securely into place.
- To remove a battery, press the release button on the battery pack and slide the battery out.
Attaching FlexiClick System Attachments
The FlexiClick system allows for quick and secure attachment changes:
- Ensure the drill/driver is switched off and the battery is removed before changing attachments.
- Align the desired attachment (keyless chuck, offset-angle, right-angle, or locking bit holder) with the tool's interface.
- Push the attachment onto the tool and rotate it clockwise until it locks securely with an audible click.
- To remove an attachment, pull back the collar on the tool and twist the attachment counter-clockwise, then pull it off.

Image: The BOSCH GSR12V-300FCB22 drill/driver equipped with the keyless chuck attachment, ready for standard drilling and driving tasks.

Image: The BOSCH GSR12V-300FCB22 drill/driver with the offset-angle attachment, designed for precise screwdriving very close to edges.

Image: The BOSCH GSR12V-300FCB22 drill/driver fitted with the right-angle attachment, ideal for accessing tight and confined work spaces.

Image: The BOSCH GSR12V-300FCB22 drill/driver with the locking bit holder attachment, which securely holds hex bits for high-torque driving applications.
Operating Instructions
Powering On/Off
To operate the tool, press the trigger switch. The tool will start. Release the trigger to stop the tool. The LED light will illuminate when the trigger is pressed.
Speed Settings
The drill/driver features a two-speed transmission. Use the speed selector switch located on top of the tool:
- Speed 1 (0-460 rpm): For high-power driving screws and applications requiring more torque.
- Speed 2 (0-1,750 rpm): For high-speed drilling and applications requiring less torque.
Clutch Settings
The 20+1 clutch ring allows you to adjust the torque output. Rotate the clutch ring to select the desired torque setting (1-20) for screwdriving, or the drill symbol for drilling applications. Higher numbers provide more torque.
Using the Keyless Chuck Attachment
This attachment is used for standard drilling and driving with drill bits.
- Twist the chuck counter-clockwise to open the jaws.
- Insert the drill bit or driver bit into the chuck.
- Twist the chuck clockwise to tighten the jaws securely around the bit.

Image: A person using the BOSCH GSR12V-300FCB22 drill/driver with the keyless chuck attachment to drill into a wooden cabinet.
Using the Locking Bit Holder Attachment
This attachment is designed to lock hex bits for high-torque driving applications.
- Pull the collar forward to unlock the bit holder.
- Insert a hex bit into the holder.
- Release the collar to lock the bit in place.

Image: A person using the BOSCH GSR12V-300FCB22 drill/driver with the locking bit holder attachment to drive a screw into a metal electrical panel.
Using the Offset-Angle Attachment
The offset-angle attachment allows for precise screwdriving very close to edges. It can rotate to 16 different positions without being removed from the tool.

Image: A person using the BOSCH GSR12V-300FCB22 drill/driver with the offset-angle attachment to drive a screw into a wooden frame, demonstrating its ability to work in tight spots near edges.
Using the Right-Angle Attachment
The right-angle attachment provides access in extremely tight spaces. Like the offset-angle, it can rotate to 16 positions without removal.

Image: A person using the BOSCH GSR12V-300FCB22 drill/driver with the right-angle attachment to drive a screw in a confined area, showcasing its utility for difficult angles.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your drill/driver.
- Cleaning: Regularly clean the ventilation openings of the tool to prevent dust buildup. Use a soft, damp cloth; do not use solvents.
- Battery Care: Store batteries in a cool, dry place away from direct sunlight. Do not expose batteries to extreme temperatures.
- Accessory Inspection: Periodically check all attachments for wear or damage. Replace worn parts as necessary.
- Storage: When not in use, store the tool and its accessories in the provided carrying case in a dry, secure location out of reach of children.
Troubleshooting
If you encounter issues with your drill/driver, refer to the following common problems and solutions:
- Tool does not start: Ensure the battery is fully charged and properly inserted. Check if the forward/reverse switch is in the neutral (locked) position.
- Reduced power or performance: The battery may be low on charge. Recharge the battery. Ensure the correct speed and clutch settings are selected for the task.
- Attachment not securing: Verify that the attachment is correctly aligned and rotated until it clicks into place. Check for any debris obstructing the connection.
- Overheating: Allow the tool to cool down. Ensure ventilation openings are clear. Avoid continuous heavy-duty use without breaks.
For issues not covered here, please contact Bosch customer support.
Specifications
| Specification | Value |
|---|---|
| Brand | Bosch |
| Model Number | GSR12V-300FCB22 |
| Power Source | Battery Powered |
| Voltage | 12 Volts |
| Battery Capacity | 2 Amp Hours |
| Maximum Rotational Speed | 1750 RPM |
| Number of Speeds | 2 |
| Maximum Torque | 300 Inch Pounds |
| Maximum Chuck Size | 13 Millimeters |
| Item Weight | 0.01 Ounces (tool only) |
| Item Dimensions L x W x H | 4.5"L x 2"W x 7.1"H |
| Material Type | Plastic |
| Color | Black |
Warranty and Support
Bosch 12V Max cordless power tools and 12V Max chargers and batteries are covered by a three-year limited warranty. This warranty covers defects in material or workmanship.
For updated terms and conditions, or to register your product, please visit the official Bosch website or contact customer support:
- Website: rb-pt.io/PowerToolWarranty
- Phone: 1-877-BOSCH99

Image: An illustration detailing the Bosch 12V Max 3-Year Limited Warranty for tools, batteries, and chargers, effective from February 1, 2025.