Felo Profi Bit Box 6 Bits x 50 mm - Slotted

I bought these Felo bits in April 2024. The set is ideal for the variety of slotted fasteners found all over vintage Land Rovers. I went to remove an (admittedly rusty) fastener yesterday with these bits and the tip exploded rather dramatically right away with only a moderate amount of torque. (Of note, these were not in an impact. I only use bits like this in my Williams ratcheting screwdriver.)

Both ends of the slotted shank shot clear off, leaving only the sharp tip in the middle. After putting on eye protection, I tried another bit and it did the exact same thing. It was as if they were hardened, but not tempered. I've never experienced this with a slotted bit— the fasteners always strip out far before you can put any reasonable amount of pressure into it!

KC Tool hadn't heard of any other cases like this, so perhaps I just got a bum batch. In any case, they made it right and I ended up buying Wera's BiTorsion bits and Hazet's TiN slotted bits to try next.

Very nice little set, the package is red not gray. The bits are hollow ground not tapered so they fit screws much better. This can be used in an impact or drill but best suited for a bit driver. High quality

I repair a lot of reels as well as guns and these buts are perfect. They don't seem to want to slip.

Very good quality.

I think we can all agree, slotted is the WORST, but alas we occasionally gotta use them. This is a fantastic little set to have on hand. I have not yet used in an impact driver, but imagine they would be great at lower torque values.