The Bosch GTB18V‑45N is a compact, cordless, brushless screw gun engineered for fast drywall fastening with lower noise and better control than many corded or bulkier cordless options. Its slim, well‑balanced body keeps your hand close to the work surface, which improves control—especially when working overhead or in confined areas. The tool’s Xtend Drive feature activates the motor only when pressure is sensed at the bit, reducing noise between drives and extending battery runtime. Bosch also equips it with user‑friendly touches like a retractable depth gauge, variable speed control, LED illumination, and a convenient belt clip, making it a practical choice for long drywall sessions or indoor work where quieter operation matters.

This deal, for $90 was spotted on Amazon on February 8, 2026. Other retailers have it on sale, but the sale price is a bit higher, at $120.

Technical Specs

• Brand: Bosch
• Model: GTB18V‑45N
• Battery platform: 18V lithium‑ion, AMPShare multi‑brand compatible system
• Motor: Brushless, up to 4,500 rpm
• Drive type: 1/4 in. hex screwgun
• Weight: ~2.1 lb
• Length: ~10.2 in
• Width: ~2.2 in
• Height: ~7.6 in
• Variable speed: Yes
• Reverse: Yes
• Includes: belt clip, screwdriving bit, bit holder
• Key features: Xtend Drive, retractable depth gauge, LED light, lock‑on switchAll above specs and features listed by Bosch for this exact model.        

What It’s Good For

• Drywall installation in tight or overhead spaces: slim body and low noise make it easy to operate in hallways, rooms with occupants, or scaffolding.
• Long jobsite sessions: Xtend Drive reduces idle motor noise and conserves battery life, useful when driving many screws in succession.
• Precision fastening: retractable depth gauge and variable speed help dial in screw depth and speed for different drywall thicknesses or substrate types.
• Mixed‑brand battery setups: AMPShare compatibility broadens battery choices across Bosch’s 18V ecosystem and participating brands, simplifying power management for crews who may use varied tools.

Compared to Other Models

• Vs. older or corded screw guns: quieter between drives, lighter and easier to maneuver, and avoids cords that limit reach or require nearby outlets.
• Vs. bulkier cordless options: maintains strong driving speed and control in a smaller package with reduced fatigue; designed to keep hand closest to material for better handling.
• Vs. purely basic screw guns: adds practical refinements—Xtend Drive, LED, depth gauge, and variable speed—which combine for more efficient and precise work, not just raw driving torque.

Also Known As

• Bosch 18V brushless drywall screw gun GTB18V‑45N
• Bosch Xtend Drive screw gun
• Bosch AMPShare 18V screw gun
• Bosch compact 1/4‑inch hex screwgun

Notes or tradeoffs

• Bare tool focus: battery and charger are not part of the tool’s core description; users need compatible 18V battery packs to run it.
• Specialized use: optimized for drywall and similar screw‑driving tasks. For broader drilling or heavy structural fastening, a separate drill or impact driver remains necessary.
• High precision benefits depend on correct accessories: using the right bits, bit holders, and depth settings is important to fully leverage the tool’s quiet, efficient design and avoid over‑ or under‑driving screws.