Bosch 12V Li-Ion EC Brushless motor impact driver.
Bosch Lithium-Ion impact driver with high torque (973 in.-lbs.), compact size, 1/4" internal hex drive, EC brushless motor, compact head length (5.5"), three LED lights, and light weight 2.2 lbs.
Bosch tool with white light, two red rectangles, and red button with white "T,!" symbol.
Bosch LITHIUM-ION 12V EC brushless motor tool.
Bosch LITHIUM-ION 12V EC motor impact driver.
Bosch LITHIUM-ION 12V EC brushless motor impact driver, held in a hand, driving a screw into a bracket attached to a metal pipe on a concrete wall.
Asian person wearing safety glasses using Bosch Lithium-Ion EC motor T 12 Impact Driver to work on an air conditioning unit.
Man wearing safety glasses and a hard hat using a Bosch EC Motor drill to work on a metal structure.
Bosch impact driver screwing into wooden plank.
Bosch 12V MAX LIMITED WARRANTY, 3 YEAR Tool. Effective 2/1/25, all 12V Max products are covered by this updated warranty. For updated terms, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99.

PS42N Professional

12V Max Impact Drivers

12V Max Brushless Impact Driver (Bare Tool)

  • Compact and light – just a 5.4 In. head length and only 1.6 Lbs. (tool only, not including battery)
  • Brushless motor – allows for greater motor efficiency
  • Pro driving performance – delivers a max torque of 975 In.-Lbs.
  • Fast driving – no-load ratings of 0-1,200 and 0-2,600 rpm
  • Optimized impact system – no-load impact per minute ratings of 0-2,700 and 0-3,100
  • Performance control system – provides two speed settings
  • Three-LED light ring – offers improved illumination in dark work spaces
  • Bosch 12V Max cordless power tools are covered by a three year limited warranty - for details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99
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PS42N Professional

Technical data

The most important data

Battery Chemistry
Lithium Ion
Height in
7.04 "
Length in
5.4 "
No Load BPM
0-3,100
No Load RPM
0-1,200 / 2,600
Reverse
Yes
Torque (in. lbs.)
975
Variable Speed
Yes
Weight
1.6 lb
Weight (lbs.)
1.6
Width in
2.2 "
Includes
(1) PS42 12V Max Brushless Impact Driver
(4) Impact Tough™ Bits
(1) Belt Clip

PS42N Professional: Further information

Product Highlights

The Bosch PS42N 12V Max Brushless Impact Driver is a lightweight, high-efficiency 1/4 In. hex driver. The compact PS42 has a 5.4 In. head length and weighs just 1.6 Lbs. (tool only, not including battery), but it is a powerhouse that produces a max torque of 975 In.-Lbs. The Bosch performance control system supplies two speed settings – one for high speed and one for high torque – with no-load rpm ratings of 0-1,200 and 0-2,600 and no-load ipm ratings of 0-2,700 and 0-3,100. The driver is ideal for repetitive driving tasks. It has a brushless motor and all-metal gearbox allows for efficiency, runtime and long life. It has an impressive runtime, provided by the lightweight 12V Max Power System, and a three-LED light ring to Illuminate dark work spaces.