Power Tools for Professionals



12V Max Brushless 3/8 In. Hammer Drill/Driver Kit with (2) 2.0 Ah Batteries

This 12V Max 3/8 In. hammer drill/driver is a professional-grade tool that provides real power at an unreal size. The Bosch GSB12V-300 features an efficient brushless motor that delivers 300 In.-Lbs. of torque, along with a max speed of 1,750 rpm and 26,250 bpm. With a head length of 6.7 In. and a weight of 2.2 Lbs. (with included battery), this compact powerful hammer drill is an ideal tool for overhead work or tight spaces. It provides two-speed transmission and 20+1 clutch settings, for more precise screwdriving. It has a durable three-jaw keyless chuck. It has an LED light to illuminate dark work areas. This kit features two 12V Max 2.0 Ah batteries and a charger.

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  • (1) GSB12V-300 12V Max Brushless 3/8 In. Hammer Drill/Driver
  • (2) 12V Max Lithium-Ion 2.0 Ah Batteries
  • (1) 12V Max Charger
  • (1) Four-Tip Bit Holder
  • (4) Impact Tough™ Bits
  • (1) Belt Clip
  • (1) Carrying Bag


  • Efficient design – provides pro torque in a 3/8 In. hammer drill/driver at only 2.2 Lbs. (with included battery)
  • Brushless motor – delivers 300 In.-Lbs. of torque and a max speed of 1,750 rpm for outstanding performance
  • Hammer drilling – provides 26,250 bpm, ideal for drilling in masonry and brick
  • Compact housing – features a head length of only 6.7 In. and a weight of only 2.2 Lbs. (with included battery)
  • Two-speed transmission – provides a high-power setting at 0-460 rpm and a high-speed setting at 1,750 rpm
  • Precision 20+1 clutch settings – allows for accurate torque settings for less fastener damage
  • Durable three-jaw keyless chuck – delivers tool durability in a 3/8 In. hammer drill/driver
  • LED light – illuminates dark work areas effectively

Technical Data

Battery 12V Lithium-ion Battery
Battery Chemistry Lithium Ion
Battery/Charger Included
Case Type Bag
Chuck Capacity 3/8" Keyless Chuck
Chuck Design Keyless
Chuck Size 3/8 in
Height 6.3"
Length 6.7"
No Load BPM 26,250
No Load RPM 0-460 / 0-1,750
Torque (in. lbs.) 300
Weight 1.8lb
Width 2.0"
Works With Dust Extraction/Collection Hood
Includes (1) GSB12V-300 12V Max Brushless 3/8 In. Hammer Drill/Driver, (2) 12V Max Lithium-Ion 2.0 Ah Batteries, (1) 12V Max Charger, (1) Four-Tip Bit Holder, (4) Impact Tough™ Bits, (1) Belt Clip, (1) Carrying Bag
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Owner's Manual


Accessories and Attachments For GSB12V-300B22

12V Max Batteries, Chargers & Starter Kits
Carbide Hammer Drill Bits
Drill Bits
Hole Saws
Rotary Hammer & Hammer Drill Attachments
Screwdriver Bits


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