Guys I am in market for Center Drills,so I look on ebay and I see there are lots of choices.So I have been told that can't go wrong with KEO so going to go with that brand.But as I'm shopping I see there are HHS,carbide,Cobalt as the material.But I also see that some are 100400 or 100410 but they are both size #4.Thing is, going by price does not help much since I see some that are double in price for the same bit.
I also look at a set which was price at 58.00 then I see another set that is 176.00 for what looks to be the same.They are all of the KEO brand.I like to go with the Cobalt since sometimes I am drilling into SS then other just plain ole aluminum.Basically I'm confuse on this so looking for little guidance on my selection.Thanks
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