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: Bare Tool
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



5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
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1 Stars
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.
How is this product better than the competition. Milwaukee and Dewalt seem to have the market. I rarely if ever see any Bosch cordless drills or impacts. I have a 14.4V drill and an 18V LiIon drill and I really really am impressed with the quality and reliability. Price seems to make it impossible for the budget any help would be greatly appreciated.
Dewsberry on Jul 4, 2015
BEST ANSWER: Bosch,Milwaukee, and DeWalt all make good quality cordless tools. It can be argued in multiple apsects that each manufacturer has their strengths and weaknesses. One of them being Bosch is on the high side price wise. But side by side, each manufacturers tool will be able to hold their own, as long as apples are compared to apples.