Not even close. The photos pretty much speak for themselves. I use wire sized drill bits that are so small that the old (and real Dremel) chuck won't hold. I don't know if they're wrongly made or wrongly assembled, but I can't use them if they close as much as possible. Too bad I'm trying to save a dollar. But if you've been using them for as long as I have, you'll end up with an imperfect Dremel part. And a note to those rating these 5 stars: drive yourself crazy. Dremel ammo is bad enough. It's terrible! Pros: 1. Are they shiny? 2. They are cheap. Cons: 1. They are cheap. Terrible vibrations.3. You will not go down to zero.4. Jaws jam when opening and thus when closing. do I recommend them? nope
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