First and foremost, please my ignorance as I'm new to the whole DIY thing. I bought a cheap set of drill bits, munched through them like butter, and so have now decided to make the investment into a proper selection. Happy to spend some more money on top-notch stuff.
My understanding is that to be well-rounded, I will want 3 sets:
- Cobalt drill bits with a 135 degree tip for metal drilling
- HSS tipped brad point drill bits with pilot point type things for wood drilling
- Carbide tipped (or diamond?) bits for tiles, brick and concrete drilling.
Is this correct?
Does a titanium coating added to cobalt drill bits make a big difference; my understanding is it wears off quickly.
Secondary question is what to look for when buying impact-ready screwdriver bits. Common sense says I should look for cobalt drill bits to ensure they don't get munched up. Does a titanium coating make a difference here?
Availability of quality bits here in Bangkok is limited. I have found one company which sells Irwin bits. Are these considered quality bits? Or do they offer little more over brands like DeWalt?
--- PS comments
- For metal drilling, I feel TPP bits would be a great purchase. Thoughts?
- For wood drilling, I feel Irwin bits would be a great purchase. Thoughts?
- Still looking for the masonry bits.