Barnwell Set of 4 Security Tamperproof Tri-Wing Screwdriver Bits 1, 2, 3, 4

Very handy short Tri Wing bits bought to complete my tool kit. Not often used but indispensable when needed.

very good: the correct tool for the job.

I bought these to enable me to open up a broken steam iron. For this task the bolts performed perfectly. They seem to be of good quality but I can't comment on overall robustness. Fair pricing too.

items are good

these screwdriver bits are hard to find and the quality of them are first class. Did the job I required easily.

These useful bits enabled us to open and repair a toaster which otherwise we'd have had to throw away. We could get in and clear crumbs from the magnet enabling the lever to stay down. Irritating that manufacturers use tamper-proof screws in toasters, but the bits enabled us to save £20, and we have them for future use.

Needed to repair a kettle fitted with tri-wing screws. These fit perfectly with 4 size options and seem very strong . Being individual bits they can be fitted to a variety of devices

Don’t know if they would hold up to repeated or heavy use, but they worked brilliantly for a couple of security screws on a control unit.