Our Verdict

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__utmv

Contains custom information set by the web developer via the _setCustomVar method in Google Analytics. This cookie is updated every time new data is sent to the Google Analytics server.

2 years after last activity

__utmx

Used to determine whether a user is included in an A / B or Multivariate test.

18 months

_ga

ID used to identify users

2 years

_gali

Used by Google Analytics to determine which links on a page are being clicked

30 seconds

_ga_

ID used to identify users

2 years

_gid

ID used to identify users for 24 hours after last activity

24 hours

_gat

Used to monitor number of Google Analytics server requests when using Google Tag Manager

1 minute

_gac_

Contains information related to marketing campaigns of the user. These are shared with Google AdWords / Google Ads when the Google Ads and Google Analytics accounts are linked together.

90 days

__utma

ID used to identify users and sessions

2 years after last activity

__utmt

Used to monitor number of Google Analytics server requests

10 minutes

__utmb

Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. The cookie is updated every time data is sent to the Google Analytics server.

30 minutes after last activity

__utmc

Used only with old Urchin versions of Google Analytics and not with GA.js. Was used to distinguish between new sessions and visits at the end of a session.

End of session (browser)

__utmz

Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js javascript is loaded and updated when data is sent to the Google Anaytics server

6 months after last activity

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Independent editorial reviewHands-on researchUpdated for 2026No sponsored rankings

Brushless motors, both drill/driver and impact driver feature a brushless motor, with a max speed of 2,000 no-load rpm and 3,200 no-load rpm respectively.
Powerful performance, experience up to 60% more power using the drill/driver and 1,800 in-lbs. of max driving torque using the impact driver.
Finish projects faster, work through long jobs with high-efficiency motors that achieve up to 40% faster driving using the impact driver and drill up to 34% faster** using the drill/driver.
Chuck system, each tool features a chuck system that allows for high bit retention and easy changes.
Onboard bit holders, conveniently access bits when making changes with the onboard holders.

Table of Contents

Pros & Cons
What Customers Are Saying
The Bottom Line

Pros & Cons

Brushless motors, both drill/driver and impact driver feature a brushless motor, with a max speed of 2,000 no-load rpm and 3,200 no-load rpm respectively.
Powerful performance, experience up to 60% more power using the drill/driver and 1,800 in-lbs. of max driving torque using the impact driver.
Finish projects faster, work through long jobs with high-efficiency motors that achieve up to 40% faster driving using the impact driver and drill up to 34% faster** using the drill/driver.
Chuck system, each tool features a chuck system that allows for high bit retention and easy changes.
Onboard bit holders, conveniently access bits when making changes with the onboard holders.

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