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Bosch PS42N — Review & Specs | Pricepect | Pricepect

Home Impact DriversBosch PS42N

Bosch PS42N — image 1

Bosch

Bosch PS42N

Expert Review Analysis

The Bosch PS42N is a compact, lightweight 12V Max brushless impact driver designed for high-efficiency fastening in tight spaces. It features a 975 in-lbs maximum torque, two-speed settings for precision control, and an all-metal gearbox, making it a powerful sub-compact tool for repetitive driving tasks.

✓ Best for: Professionals and DIYers needing a pocketable 12V impact driver for tight-space, repetitive fastening, such as electricians, plumbers, and cabinet installers working in confined areas like overhead joists or cabinets. It is ideal for driving ledger screws, rusted/self-tapping screws, and precision assembly where low speed prevents cam-out.✗ Not ideal for: Heavy automotive tasks requiring high torque such as large lug nuts, or jobs requiring the raw power of 18V/20V tools. It is also less ideal for users who prioritize maximum speed over precision and find the low-speed setting too slow for their workflow.

Pros

✓Extremely compact 5.4-inch head length ideal for tight spaces
✓Lightweight 1.6 lbs bare tool reduces user fatigue during overhead work
✓

Best Seller Rank History

Now#87Best#46Worst#179 +40

Lower = better sales rank

Rating Trend

Rating4.5/ 5Reviews177+-339 reviews -0.20

Specifications

Design

Housing MaterialHigh-impact composite plastic

Included AccessoriesBelt clip

Form FactorSub-compact / Pocketable

Features

Drive Size1/4-inch Hex

Chuck TypeQuick-change

ReverseYes

Variable SpeedYes

General

ModelPS42N

BrandBosch

Warranty3-year limited

ColorBlack

Weight1.6 lbs g

Lighting

Work LightThree-LED light ring

Performance

Maximum Torque975 in-lbs Nm

No-Load Speed Low0-1,200 RPM RPM

No-Load Speed High0-2,600 RPM RPM

Impact Rate Low0-2,700 BPM BPM

Impact Rate High0-3,100 BPM BPM

Power

Voltage12V Max V

Motor TypeBrushless (EC Brushless)

Gearbox MaterialAll-metal

Motor

Motor TypeEC Brushless

Chuck

Drive Size1/4-inch Hex Quick-change

Dimensions & Weight

Height7.04 inches

Width2.2 inches

Depth5.4 inches

Weight2.33 Pounds

Research Sources

protoolreviews.com

mechanical-hub.com

beavertools.com

equiptestpro.com

northerntool.com

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User Reviews

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4.6

(170 reviews)

$119.00$138.8314% off

PS42NBlack5.4" in 1 yr warranty on material and workmanship

High 975 in-lbs max torque punches above typical 12V class expectations

✓Two-speed control system prevents overtightening and allows precision

✓Brushless motor delivers extended runtime and durability for tough tasks

✓All-metal gearbox ensures efficiency and long-term structural durability

✓Three-LED light ring provides excellent illumination in dark workspaces

Cons

✗Lower speed setting can feel painfully slow for quick repetitive jobs
✗Trails Milwaukee M12 Fuel in raw speed on ledger screw tests
✗Limited to 12V ecosystem which is less powerful than 18V/20V tools
✗Not suitable for heavy automotive tasks like large lug nuts
✗Bare tool sold without battery or charger included in package

From Expert Reviews

Praised by Experts

✓Ranked second in 12V impact drivers for speed behind Milwaukee
✓Praised for compact design and solid feature set including two speeds
✓Handles rusted screws and laminated wood effortlessly with high torque
✓Brushless upgrade offers less frequent charging compared to brushed models
✓Two-speed settings praised for accuracy in delicate versus punch tasks

Criticized by Experts

✗Lower speed setting can feel painfully slow for some professional tasks
✗Trails Milwaukee M12 Fuel in raw speed on specific ledger screw tests
✗Limited to 12V ecosystem which is less powerful than 18V/20V tools

From User Reviews

Users Love

✓Compactness allows for easy use in overhead and tight working areas
✓Surprising power for a 12V tool that powers through rusted screws
✓Precision via two speeds prevents cam-out during delicate assembly
✓Bright LED ring improves visibility in dark or confined spaces
✓Long runtime allows for all-day use without frequent battery changes

Users Complain About

✗Low-speed setting is too slow for users preferring quick job completion
✗Not suitable for extreme torque applications like automotive lug nuts
✗Bare tool requires separate purchase of battery and charger

Expert Opinion

Professional reviewers rank the Bosch PS42N as a strong second to Milwaukee in the 12V category, praising its compact design, two-speed brushless motor, and 975 in-lbs torque. It is described as a powerhouse in a lightweight form that handles rusted screws and multi-layer metal effortlessly. Reviewers note that while it trails Milwaukee in raw speed, it offers better two-speed control and is distinguished by its balance of power and size.

What Users Say

Everyday users echo professional praise for the tool's compactness and surprising power for a 12V device. Common themes include satisfaction with its ability to handle rusted screws and its precision via two-speed settings. Recurring complaints focus on the low-speed setting being too slow for quick jobs and the tool's unsuitability for heavy automotive tasks like lug nuts.

Common Complaints

The low-speed setting is frequently criticized for being too slow for quick jobs. Some users note that the tool is not powerful enough for extreme torque applications like automotive lug nuts. The bare tool format requires additional purchases for battery and charger.

What People Are Saying

“Powered through rusted screws”
5/5 ★Mechanical Hub ProStaffNov 2025

“Probably the strongest 12V out there”
5/5 ★Mechanical Hub ProStaffNov 2025

How It Compares

vs. Milwaukee M12 Fuel

Advantages

✓Bosch offers a more compact design with better two-speed control

Disadvantages

✗Bosch trails Milwaukee in raw speed on ledger screw tests

Choose Milwaukee for maximum speed and power, or Bosch for better compactness and precision control.

vs. Makita 12V CXT

Advantages

✓Bosch ranks ahead with better balance of power, size, and features like LED ring

Disadvantages

✗Makita has similar torque but Bosch is lighter and has two-speed control

Choose Bosch for superior features and two-speed control, or Makita for similar torque in a slightly heavier package.