Hitachi WH12DAF2 12-Volt Impact Driver

My Rating for the Hitachi WH12DAF2 is 4 Stars

Hitachi WH12DAF2Review Summary: The Hitachi WH12DAF2 12-Volt Impact Driver has a fast charger with a 5 year warranty to back its durable construction.


Detailed Review of the Hitachi WH12DAF2 12 volt cordless impact driver

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Impacts per Minute (IPM) Grade: Below Average

The Hitachi WH12DAF2 has a top IPM of 2900 IPM. The average top IPM of 12 volt cordless impact drivers is 2955 IPM. An impact driver delivers blows in a rotational way as opposed to a hammer drill which delivers blows into the work. The higher the IPM of a cordless impact driver the faster a screw or bolt will be installed or removed.

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Power Grade: Average

The Hitachi WH12DAF2 has a power rating of 975 in/lbs. The average power rating of a 12 volt cordless impact driver is 981 in/lbs. The power of a cordless impact driver is measured by torque (inch-pounds). Torque is the measurement of the twisting force the drill applies when started. Power in DeWalt cordless drills is measured in unit watts out(uwo) which measures torque at different drill speeds.

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Speed: Good

The Hitachi WH12DAF2 has a top speed of 2500 rpm. Higher speeds help you drill holes quicker and cleaner. The average speed of a 12 volt cordless impact driver is around 2423 rpm.

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Battery Run Time: Average

The battery run time is 1.4 amp hours. The average for 12 volt cordless impact drivers is 1.5 amp hours. The ampere-hour rating (Ah) gives you an idea of how long your battery will last between charges. A 3Ah will last 3 times longer than a 1Ah battery.

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Battery type and quantity: Below Average

The Hitachi WH12DAF2 comes with 2 NiCd batteries. Most newer cordless impact drivers have 2 Lithium batteries included. Lithium are lighter , can hold a charge longer, and are more environmentally friendly than older NiCd batteries.

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Charger: Excellent

The Hitachi WH12DAF2 comes with a 30 Minute charger. The best chargers offer less than 1 hour charging and a maintenance mode that can extend the life of the battery.

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Price Range: $100-200

Prices may have changed since this review was done. Always check the most recent and best price for the Hitachi WH12DAF2 cordless impact driver from multiple stores.

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Tool Weight: Heavy

The Hitachi WH12DAF2 weighs 3.5 lbs. The average 12V cordless impact driver weighs about 2.8 lbs. Tool weight comes into play when you use it for extended periods of time or you hold it in awkward positions.

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Hitachi WH12DAF2 Cordless Impact Driver Strengths

  1. Fast battery charger
  2. Longer Warranty
  3. Good speed
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Hitachi WH12DAF2 Cordless Impact Driver Weaknesses

  1. Older battery technology
  2. Above average weight

Some other features of the Hitachi WH12DAF2 include:

  • Carrying case
  • LED work light
  • Five-year limited warranty
Order the Hitachi WH12DAF2
Order the Hitachi WH12DAF2

Reviewed by Jon Sevenson on 9/4/12.

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