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  • Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers
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Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers

by Hitachi
81 customer reviews
| 3 answered questions

List Price: $47.70
Price: $32.82 & FREE Shipping on orders over $35. Details
You Save: $14.88 (31%)
Only 12 left in stock (more on the way).
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  • High rotational torque capacity
  • Patented key-less locking mechanism prevents bit spin
  • 1/4-inch hex quick connect allows users to change from fastening to drilling easily
  • Fiber reinforced composite material provides strength without adding significant weight
  • Comes with a 30-day limited warranty
  • Converts 1/4-Inch hex drive for drilling applications up to 3/8-Inch shank drilling and driving bits
  • Fiber re-inforced composite material provides strength without adding significant weight
See more product details
6 new from $32.82
$32.82 & FREE Shipping on orders over $35. Details Only 12 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers + SE 7503SD 3-Piece Power Extension Bit Set for Drills + TEKTON 2938 Quick-Change Power Nut Driver Bit Set with Detents, 14-Piece
Price for all three: $44.01

Buy the selected items together

Product Description

Product Description

Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers

From the Manufacturer

The Hitachi 725405 3/8-Inch Keyless Conversion Chuck converts 1/4-Inch hex drive for drilling applications with a 3/8-inch capacity. It has a high rotational torque capacity. Its patented key-less locking mechanism prevents bit spin. 1/4-Inch hex quick connect allows users to change from fastening to drilling easily. Fiber re-enforced composite material provides strength without adding significant weight. The Hitachi 725405 3/8-Inch Keyless Conversion Chuck is warranted to the original purchaser to be free from defects in materials and workmanship for a period of 30-days from the original purchase date. Every Hitachi accessory is designed to the highest standards and is rigorously tested for both performance and durability. Since its inception, Hitachi has pioneered innovative technologies that have improved the quality of craftsmanship worldwide. Hitachi is a leader in power tool research and development and has achieved many firsts in the power tool industry. Today, Hitachi continues the tradition of innovation and engineering with new features in addition to classic quality.

Product Information

Technical Details
Part Number 725405
Item Weight7.2 ounces
Product Dimensions2.5 x 3.3 x 9.5 inches
Item model number725405
Item Package Quantity1
Warranty Description30 Day Satisfaction Guarantee and 1 year warranty
  
Additional Information
ASINB001717COS
Best Sellers Rank #90,195 in Home Improvement (See top 100)
Shipping Weight7.2 ounces (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableApril 15, 2008
  
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

39 of 39 people found the following review helpful By Kerry Pierce on November 2, 2009
Verified Purchase
I didn't really want to pay twice the price of the Milwaukee chuck, just for keyless operation, but what is the point of using a 1/4" quick change system if you're going to put extra steps and pieces in the mix? In the end, I didn't want to try to keep track of the chuck key and didn't want to lose the speed and convenience of having a keyless drill chuck that was quick change. I've tried some of those 1/4" quick change drill bits and they're just not up to the task. I like using my regular drills and if you need a long shank drill, like I've been using a 6" long 1/8" this week, you're stuck with fussing with a drill too.

I've used the Hitachi chuck several times now, with several different drill bits. It's worked fine. It locks up nicely and I've yet to have a drill spin, but I'm not really doing much to stress that point. The long drill would stress it the most, of the drills that I've used, but it has worked fine.
EDIT: 11/12/2009 - I finally encountered a problem with spinning on a 1/16" smooth shank drill bit that I was using to drill holes in an aluminum door with a high torque, high speed driver. I was drilling several holes and through a couple of layers and the chuck would spin on the bit on breakthrough. I really had to crank on the chuck to get it to work on the last couple of holes without spinning. I've used it on several other applications since my initial review, without problems. I'm still happy that I got the chuck.

In the end, the Hitachi chuck seems like a quality chuck, probably worth 5 stars. But, I gave it 4 stars because of the price. Most, if not all, battery powered screwdrivers don't have the power to really stress a chuck like this and that's probably going to comprise the majority of the people who buy this unit.
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17 of 18 people found the following review helpful By S Clemens on November 5, 2009
Verified Purchase
It may look stupid hanging off the end of an impact driver, but not having to buy quick change drill bits (which always break) and not having to bring a big heavy cordless or (GF) corded drill to a small job is really nice. It's a little pricey and should come with any quick change hex driver (read Festool) already, but if you're switching to LIon 10.8V drivers (which you should the next time your NiCads die) you need this.
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23 of 27 people found the following review helpful By C. S. Williams on March 6, 2009
Verified Purchase
This is a quality piece. Looks to be made in Germany by Rohm. It's very handy for use with those 1/4 inch impact drivers. Just say "NO" to the other made in CHINA units.
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12 of 13 people found the following review helpful By Hawks Fan 77 on November 18, 2010
Verified Purchase
bought this little gem after getting tired of dealing with the poor quality DeWalt keyless chuck. At the time i spent $45 bucks for this Hitachi, and while pricey, it was worth every penny knowing that i'd be able to get the bit out when needed. it has since come down in price and i purchased two more for the impact drivers i use at home. this is a high-quality german made chuck for a reasonable price, you won't be disappointed.
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13 of 15 people found the following review helpful By Angel Cruz Jimenez on October 26, 2009
Verified Purchase
I used this on my impact driver to meet all my screwing and drilling needs while expanding my deck, It worked perfectly, it is light and it is easy to use. Good buy.
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5 of 5 people found the following review helpful By J. Comfort on December 1, 2011
Verified Purchase
I purchased this so that I could use a 3/4" hole saw with my 10.8-volt impact driver. So far, I've been very pleased. The chuck is of very high quality. However, I've found that I do need to be careful that it's tight enough: I lost a hole saw down a wall when the arbor fell out of the chuck. I now make sure that once I hear the "click" when tightening the chuck, that I tighten the chuck a few "clicks" further.
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5 of 5 people found the following review helpful By JMikeC on March 8, 2011
Verified Purchase
Bought for use in my work where I use drills and impact drivers on a daily
basis. Interestingly noted was that I could not find this chuck in a big box store as a single item purchase or in a combo purchase. I have used it for about 3 weeks and it performs very well in a variety of tasks.
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3 of 3 people found the following review helpful By Chris Dragon on October 3, 2012
Verified Purchase
I'm not sure if this drill adapter is just perfectly balanced or what, but unlike the DEWALT DW0521 Quick Connect Impact Driver Conversion Chuck I tried, this adapter has almost no wobble in most orientations. If you run with the drill bit pointed straight up it will wobble about 3mm due to the inherent looseness of the hex socket of a driver, but in horizontal or at most other angles, and at most speeds, the adapter seems to be constantly pulled down by gravity and the tip of the drill bit moves by less than 1mm.

I was able to use the Hitachi with a 1/4" bit to drill an accurate hole whereas the wobble generated by the DeWalt adapter caused splintering and a hole off center from the pilot hole. I've been using the Hitachi to drill a couple dozen 1/8" and 1/4" holes and the accuracy has been fine.

Of course it may just be luck of the draw if you get a perfectly balanced adapter or one that wobbles, but since the Hitachi is stamped as made in Germany my money is on the Hitachi for most likely to be balanced. Also, I ended up ordering a second Hitachi and it works just as well as the first. The project I'm working on requires switching between two different bit sizes a lot so being able to quickly swap bit adapters in a driver is just too useful.

The manual says you're supposed to tighten the chuck until it clicks at least once. It usually takes a lot of force to make it click (seems a bit random - sometimes I can get 2-3 clicks before it's too hard to turn further). The manual doesn't say what the clicking means but I'm guessing it's sort of a spring-loaded grip of some sort because I've never had a drill bit come loose after I got it to click.
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Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers
This item: Hitachi 725405 3/8-Inch Keyless Conversion Chuck for 1/4-Inch Hex Impact Drivers
Price: $32.82
Ships from and sold by Amazon.com