IRWIN 3053055 1" #10 Spanner Insert Bit

Great price for product, but the shipping was outrageous. If I didn't need these, right now, I would have waited the 30 days or so to get them free shipping from China.

If you need a tamper resistant screw, you of course need the matching driver bit, which is the whole point. So if you go to your Ace Hardware store, you can buy expensive #14 spanner screws, which I did, and they sold me the matching driver. Unfortunately, the driver was actually #12 and when I went back, it turns out they don't sell #14 drivers, even though they have the screws! I went to another Ace in the area, and it was the same thing. These standards are very close to one another and it's difficult to tell by looking which is which. You can ALMOST get a #12 driver to fit a #14 spanner screw if you're just messing around in the store. Also, this size does not come with the inexpensive 100 piece tamper resistant bit set from Harbor Freight, which I also own, although there's room in the case for this one once you buy it, which is handy! Of course this bit worked perfectly for the 4 screws I needed to place--I don't plan to use it daily--so I'm completely satisfied. Just be careful to order the correct size!

This worked perfectly to take my hinderer xm 18 3.5 apart

Purchased as a replacement for a lost spanner bit. Works as expected.

It works as it should, it's a #14 Spanner...

I bought this because this will work to help break open/break down the ASA regulator on Empire Axe/Mini/Vanquish paintball markers. Don't pay $50 for a specially made tool to crack open the regulator when a 1" #14 spanner bit will do the job for a fraction of the price!

Worked/fit great. What I needed.

Great Price and Fast Delivery

Good product fast shipping