Drill bits

[Dalboy]

I am looking for a company that sell drill bits I have searched on here and can't find them I think they had "Drill" in their title.

I am looking for cobalt metric bits so any where will help me find them

 

[Themackay]

HSS Ground Drill Bits

 

[Themackay]

Cobalt Drill Bits

 

[Themackay]

Screwfix also have a few

 

[Dalboy]

Thank you Alan that is the company. I did try a search here but no results. Have now ordered what I wanted. Screwfix are OK for standard size bits but I needed a couple of oddball sizes. I did also order some to replace my standard sizes that for some reason I did not have or lost

 

[21William]

I get most of my drill bits from eBay. UK drills are ok but sometimes they want you to buy 10 bits of a given size. They’ll often though sell you just one on eBay!?

 

[Dalboy]

I get most of my drill bits from eBay. UK drills are ok but sometimes they want you to buy 10 bits of a given size. They’ll often though sell you just one on eBay!?

I know that but it is only the smaller ones which are the ones that get broken more. But thank you for pointing it out as others who may follow this thread may find it useful

 

[21William]

I got 10 small cobalt number drills on eBay inc postage from RDG recently for the cost of a single drill bit from most other suppliers.

I also have a “Discount” store near me that sells odd size cobalt bits from time to time. These generally range in size from about 6 mm up to about 12mm and cost about 80p - £1.20 each.

 

[Penpal]

The proof generally comes after purchase v,let us know of your user experience after this event Derek. As always with me I have chosen well,paid well and had great satisfaction with upmarket drills,my challenge has always been verifying each drill after purchase for actual sizes and how they perform. In metal using lubricants etc really change the equation so horses for courses does apply.Futile experiences has provan manufacturers claims can be really exaggerated with regard to custom made drills in the United States ,Europe and Australia.

Peter.

 

[Dalboy]

When I drill in metal and want an exact sized hole I drill one drill bit size under and then ream to the correct size. You probably do exactly the same.

 

[Cumbrian Craig]

I've just been given a couple of reamer bits of a friend of mine who's a fabricator.... they look a bit scary?? He assures me I can get very accurate results.

 

[21William]

I’ve checked drill sizes carefully with a micrometer before and even well known brands appear undersized sometimes. This is of course measuring the shank as it’s difficult to measure the actual cutting section. Sometimes they’re bang on size, sometimes not. It’s rarely that important but when it is as said I drill undersize and then use a reamer. Luckily reamers can be had from China on the auction site for not too much money. Failing that you can “creep up” on the required size but going up in .1mm steps. Number and letter drills go up in even smaller increments.

Drill Bit Size Chart

 

[wm460]

A couple sets for you.

HSS-Co (5% Cobalt) Drill Bits 1-6mm Set 51pcs (Split Point)

HSS-Co (5% Cobalt) Drill Bits 6-10mm Set 41pcs (Split Point)

 

[21William]

This actually begs a question, I work mainly with metal and haven’t noticed any particular advantage using Cobalt/HSS over ordinary HSS drill bits? Anyone noticed any difference? I should say that when I’ve bought bits with added Cobalt it was only because the price was right, not because of the composition!

 

[Penpal]

Yes in metal work ,selective use of drills match their performance,new ball game in timber.

Peter.