My local PepBoys carries Kawasaki DrillBits & I have have found that they will 

Cut like they are in Butter when nothing else will ~

On 19 May , 2018, at 10:18 PM, Alistair Bell wrote:

> What bolt is this? 
> 
> There are drill bits and there are drill bits.
> 
> Cobalt by itself means little unless backed up by some numbers and a good brand.
> 
> If you can make a punch mark with a centre punch on the bolt, then you can drill it. 
> 
> Start with small drill bit, use cutting oil, plenty. Does it bite?
> 
> Sometimes you can work harden what you are trying to drill. Usually that�s because of dull bit, too fast, no cutting fluid.
> 
> It happens in stainless sometimes. Swap out bit, try again slower.
> 
> Alistair
> 
> 
>> On May 19, 2018, at 9:10 PM, thewestyman <zolo@FOXINTERNET.NET> wrote:
>> 
>> Yup, trying but I can�t even start it, so hard.
>> I have no idea what makes it hard like glass, but the cobalt drill won�t even start any shaving.  
>> This cobalt drill is from Home Depot.  Maybe there is one harder than this.  
>> Anyone has an idea what to do?  
>> I have already installed the head, would not like to take it off.
>> 
>> Best regards to the Great List,
>> Zoltan