Bosch 18V Compact Brushless 1/2 In. Drill/Driver Kit (GSR18V-400B12)

Price~$120–$170 · Reviews referenced299 · Updated2026-04-17

One-line verdict

Compact powerhouse for contractors and advanced DIYers needing a lightweight 18V drill that fits tight spaces but trades some max torque for everyday heavy-duty jobs against bulkier rivals.

How it compares

  • vs DEWALT 20V MAX XR Hammer Drill ($200–$270): Bosch wins on compact size and tight-space maneuverability, DEWALT wins on max torque output and hammer/masonry capability
  • vs Milwaukee M18 FUEL 2-Tool Combo Kit ($349–$399): Bosch wins on portability and price, Milwaukee wins on raw power, runtime, and value as a bundled two-tool system
  • vs Milwaukee M18 Cordless 1/4 in. Ratchet ($149–$199): Bosch wins on drilling and driving versatility, Milwaukee wins on fastening speed in automotive/mechanical tight-space applications
  • vs Makita LXT 18V Cordless Circular Saw ($150–$200): Bosch wins on general-purpose utility across drilling tasks, Makita wins on cutting capability for sheet goods and framing

AI-summarized review themes

Frequently Praised

  • Compact and lightweight, easy to maneuver in confined or overhead spaces
  • Sufficient power for typical household drilling and driving tasks
  • Preferred by contractors over heavier models for its weight and noise level

Frequently Criticized

  • Chuck slips on heavy-duty material, unreliable grip under load
  • Lower torque than full-size models, limiting demanding applications
  • Included case deteriorates quickly, joints separating after minimal use

Best for

tight-space drilling, overhead work, one-handed operation, {advanced DIYers, contractors}

Not for

heavy masonry or lag bolts, extended high-torque jobs, {users needing max power over compactness}

Specifications

SpecValue
Battery Platform EcosystemBosch 18V AMPShare™
Brushless Motor TechnologyYes
Chuck Size1/2 in. all-metal keyless
Maximum Torque400 in.-lbs.
Tool Weight (with battery)1.95 lb
Battery Voltage & Capacity18V, 2.0 Ah included
Clutch Settings20 + drill mode
Variable Speed RPM0-500 / 0-1,900
Length6.3 in.
Warranty5 years tool / 3 years battery

Data sources

  • Estimated ~299 purchase reviews via Amazon, Lowes
  • Review period: 2023-2026
  • Sentiment confidence: high
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