October 19, 2021

Professional Tool Reviews for Pros

Bosch GSB12V-300N 12V Hammer Drill

Bosch 12V Hammer Drill GSB12V-300N

Bosch 12V Hammer Drill Provides Pro Power at an Unreal Size

The Bosch Tools 12V Max Hammer Drill (GSB12V-300N) offers professional-grade power from a package that’s lightweight and compact. With a head length of 6.7″ and a weight under 2 lbs., this makes an ideal choice for working overhead or in tight spaces.

10-Second Summary

  • Model: Bosch GSB12V-300N
  • Brushless motor
  • 300 in-lbs of max torque
  • Max 1,750 rpm and 26,250 bpm
  • Two-speed transmission
  • 20+1 clutch settings
  • 3/8″ keyless chuck
  • LED light
  • 1.8 lbs. (without battery)
  • 6.7″ head length
  • Warranty: 3 years
  • Price: $129 (bare tool)

Bosch GSB12V-300N Features

As you might suspect, the Bosch 12V Hammer Drill uses a brushless motor. It delivers 300 in-lbs of torque and runs at a max speed of 1,750 rpm. For hammer drilling applications, the GSB12V-300N provides 26,250 bpm for basic drilling in brick and masonry.

Bosch cordless hammer drill GSB12V-300N

The Bosch GSB12V-300N features a 3/8″ keyless chuck. A two-speed transmission lets you select between high power (0-460 rpm) and high speed (0-1,750 rpm). Between this, the variable speed trigger, and the 20+1 clutch, you can exert a good amount of control over drilling and driving tasks.

Bosch cordless hammer drill 12V GSB12V-300 Bosch

The tool weighs just 1.8 lbs without the battery. Bosch 12V battery packs don’t add much weight, of course. With a head length under 7-inches, the Bosch 12V Hammer Drill keeps up the Bosch trend of creating really small, compact cordless 12V tools.

Final Thoughts and Pricing

One of our earliest tool review memories surrounds Bosch 12V tools. They haven’t changed much over the years—mostly because they started off strong to begin with. The newest Bosch 12V drill/drivers seem to keep the same look—but add more speed and power. That’s great news for anyone in maintenance & repair (MRO), HVAC, etc., wanting a compact tool that can handle occasional Tapcon-drilling into brick or block. For this, you may have a hard time beating the ergonomics of this 12V tool.

You can pick up the Bosch GSB12V-300N as a bare tool for $129. It comes with a 4-tip bit holder, four impact-rated bits, and a belt clip. By registering this tool in Bosch’s ProVantage program, you get a three-year warranty.

Bosch 12V Hammer Drill Specs

  • Model: Bosch GSB12V-300N
  • Battery Chemistry: Lithium-Ion
  • Battery Voltage: 12V
  • Chuck Capacity: 3/8 in. Keyless Chuck
  • Height: 6.3 in.
  • Length: 6.7 in.
  • No-Load BPM: 26,250 BPM
  • No-Load RPM: 0-460/0-1,750 RPM
  • Torque: 300 in.-lbs.
  • Works with Dust Extraction/Collection Hood
  • Warranty: 3 years with ProVantage
  • Price: $129 (bare tool)

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