Titanium drill bits from b&q
 

Why are mine spotted with rust :Suspiciou :mad:

Isn't it just the tip thats Titanium, rest of the bit is steel so able to rust...

Ah that would make sense

Is it possible to sharpen them with a normal stone?

Les

Havnt attempted it , just snapped one at the weekend anyway :(

Thats a shame.

Les :(

I think you might find that Ti bits are actually just Ti coated and once the coating wears, they rust like all drills will.

A spray of WD40 or similar before putting them away helps.

So if you sharpen them they will be like normal steel drills then.

Les

AFAIK, yes.

As Alcazar says, the titanium nitride is just a coating. Do yourself a favour and get a set of cobalt steel drills - they're not that expensive and can be resharpened.

+1

Is the coating a gold colour? If so it is a titanium nitride coating - present to increase surface hardness and reduce friction. The parent metal will be steel.

That's it, couldn't remember the proper term.

or high speed steel ones? (HSS)

Sounds the best way to me.

Les

Just buy cheap drill hss drill bit kits' use WD40, when they blunt, buy a new kit. Unless you are a professional engineer, then use to quality bits