Model#: BSHNIWMH182B

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Bosch IWMH182B 18V Cordless Lithium-Ion 1/2 in. Square Drive Brushless Impact Wrench (Bare Tool)

  • Note: Battery & Charger sold separately
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Product Overview


Bosch's IWMH182B 18V Cordless Lithium-Ion 1/2 in. Square Drive Brushless Impact Wrench (Bare Tool) is equipped with Bosch's EC brushless motor, providing 2X the motor life, increased performance, and improved runtime.
A 1/2 in. pin detent drive with quick attach allows for maximum socket retention with a sloped detent to provide fast, easy socket attachment. Featuring the Bosch Performance Control System, the IWBH182 allows users to adjust tool speed and torque with a push of a button to match the tool's performance to the application at hand.
  • 18V brushless motor offers 2X life versus conventional motors
  • Electronic Motor Protection (EMP) protects motor against overload for longer life
  • Balanced construction offers less fatigue for every day jobs and in difficult applications
  • Compact and lightweight design allows tool to be used in more applications
  • Bosch exclusive three LED design provides maximum illumination of work area
  • 18V Cordless Lithium-Ion 1/2 in. Square Drive Brushless Impact Wrench (Bare Tool) - IWMH182
  • Belt Clip
  • Bare Tool - Batteries and Charger Sold Separately


Length: 6.4 in.
Height: 9 in.
Weight: 3.6 lbs.
Anvil Type: Detent Pin
Batteries Included: 0
Battery Type: Li-Ion
Breakaway Torque: 185 ft-lbs.
Drive Size: 1/2 in.
Drive Type: Square
Handle Style: Pistol Grip
No-Load Speeds (IPM): 0 - 3,500
No-Load Speeds (RPM): 0 - 2,500
Voltage: 18V



5.0 / 5.0
1 Review
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1 Star
Would you recommend?
Yes (1)
Ergonomic Design (1)
Lightweight (1)
Yes, I would recommend this to a friend
Ergonomic Design
Surprisingly powerful and light
As a mechanic I'm using this for most of the things I used my larger impact for and it doesn't break a sweat. I just love it. The description here is not accurate, it does not have an adjustable torque setting and it only has one led.
November 27, 2015

Questions & Answers

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What is the difference between this product (IWMH182B) and the IWBH182B? Both models are brushless, the only difference I can see is 1 LED light versus 3 LED? Is one a single speed versus a 3 speed model? Thanks Taylor
Taylor on Jan 2, 2016
BEST ANSWER: The major difference is (model IWMH182B) offers 184 ibs of torque vs (model IWBH182B) offers 137.5 ibs of torque.