Makita B-39578 Impact Gold Number 1 Phillips Double-Ended Power Bit, 2-1/2-Inch, 3-Pack
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Any number greater than one It's not very stable at 25".
The 825 series appears to be a 1/4" impact, so these bits should work.
I ordered two of them, and they arrived in perfect condition. The threes appear to be genuine.
Selected User Reviews For Makita B-39578 Impact Gold Number 1 Phillips Double-Ended Power Bit, 2-1/2-Inch, 3-Pack
When you use as many bits on the jobsite as I do, you quickly learn which products are the most cost-effective, and which last long enough to get you through long, demanding jobs without having to stop for tool changes. br>br>When you compare the number of these used in a large job to other less expensive brands, you can easily see that they are ironically less expensive than any other Asian brand. br>br>Buy them and keep spares, they are worth owning.
I'm a homeowner who is working on repairing my fence. I had a set of Phillips bits from a low-cost set. I was annoyed by how difficult it was to start the screws and how frequently they spun off. I purchased these Makita bits, and they have made a significant difference! One of the best purchases I've ever made in terms of tools. These tidbits have saved me a lot of time and aggravation. They have a much better fit in the screw heads than the other bits.
On an impact driver, these three bits are extremely useful. I do a lot of work on commercial doors and always have 2 and 3 phillips bits on hand. These double-ended bits fit perfectly in the chuck and side bit holder of an impact driver. I suppose it's cool that it's double-ended in case one of the sides breaks? You can also count on Makita brand bits to be of high quality. br>br>These will not work in magnetic bit extensions or "quick-change" bits. extensions to the "lock" bit Only in my impact driver do I use them directly.
My first test was on a job that had been waiting for these to arrive: some long screws with fine threads and one phillips head, all made of hardened steel. I'd already ruined my last four (bulk bin) bits and used up all of my curse words on them. The first of these not only finished my project, but it also put an end to the Makita bit. I had previously been unable to loosen even one of the 12 screws, so I was quite impressed. br>br>For what it's worth, the bits are also quite attractive. br>br>My only criticism is that the narrow parts of the shaft are thinner than my other "quick change" bits and wobble a little in the Irwin "Lock" system. "Load" is the command I give to my driver.
These bits outlast any other bits I've tried (and there have been a lot). I use these Makita bits in my Milwaukee tools, and they are far superior to the Milwaukee series, which are at best mediocre.
Much more durable than low-cost alternatives, and the tips have gripping surfaces. For difficult assemblies, we use this and other Makita models.
I like the double end feature, and the fit in the screw is nice. I don't drive wood screws, so I can't comment on how well they hold up, but as an electrician, I do drive the occasional self tapper, and this has held up just fine for a few months with almost no wear.
If you can't use T drive screws, these are a must-have. I went through a lot of bits trying to complete a project with only one philips screw. After a half-dozen 1 screws, I tried Irwin, Dewalt, and a couple of other no-namer bits, which all tore up. These were instrumental in making it possible and allowing me to maintain my sanity! It worked perfectly in my Ridgid impact driver and lasted significantly longer than the other bits. Makita, you are welcome.
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