Some of you may remember that I bought two Hitachi 14.4V Impact drivers a while back, they are great work well, but one thing that I did NOT know is that the driver bits for Japan are different than the ones you guys use in the US and Canada.
The ball-detent location is different.
Here is a comparison....
As you can see the Japanese style bits are different, they are double ended (nice feature) and the ball-detent is further along on the shaft of the bit. This means that I cannot use the commonly available bits here. I did find some that were made for one brand of air tools, but they were expensive, over $5 a bit, ouch.
I got on Lee Valley's website, as I needed a few other things as well, I found these driver bits >> HERE << and ordered 20 of the 1 15/16" and 20 of the 3 1/2" length bits.
The price seemed decent, so I was happy.
Then, when I used them, they started to blow up......
Attachment 34882 Attachment 34883
These bits drove one or two screws before blowing up, I think one of them actually did three screws
After four bits in about 5 minutes, I knew something was wrong, so I stopped using the short bits, I have used a 3 1/2" bit for nearly two days now and it has NOT blown up on me........... yet.
I contacted Lee Valley and they informed me that these bits are NOT for use with impact tools......
Well, OK, I guess I'll be returning the unused bits, but I did point out to them that their online catalog says this.........Originally Posted by Lee Valley
I pointed out that if these bits are NOT for use with "Impact Drivers" it should say so, as some people, like me, thought that "Power Drivers" meant something different than "Power Drills" as they do list both, and I made the wrong assumption that "Power Driver" was an impact driver.Each bit is machined from chrome vanadium molybdenum tool steel and is hardened to Rc59-62. These will last much longer than normal bits, especially when used in cordless drills or power drivers.
As Lee Valley does not sell bits for impact drivers, they were kind enough to send me several links to companies that do, I ended up ordering >> THESE << from McFeely's which are rated for impact drivers.
In the end, I'll have to eat the four busted bits, and the two longer ones that I've already used, plus the shipping to return them to Lee Valley.
Not their fault, and they are accepting the returns, and they did suggest a source for the tools I need, but still not the best experience.
I hope that they take my e-mail suggestion and change the online catalog so it states that these are NOT for impact drivers, I know the paper catalog cannot be as easily changed.
Just a little FYI for you all.