[chucka103]

Hi all

Does anyone know of a good online store to buy carbide slot drills ??

TIA

Cheers Charlie

[RCaffin]

You have not mentioned what you want to cut, or what size cutters you want.
Polyethylene is fairly easy; titanium is not.

Cheers
Roger

[chucka103]

Good point roger
I'm cutting aluminium and after carbide and coated slot drills - ball nose and straight 10mm to 2mm

I've been searching google heaps and there doesn't seem to be many online shops that are user friendly and most of the major brands require a trade account ...


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[RCaffin]

You could do worse than to try CarbideChiu on eBay.
I do buy from him.
I would suggest skipping the HRC45 cutters and going up a bit to HRC55 or higher.
But, on eBay you have to take your risks.

Cheers
Roger

[johnno402002]

I've bought quite a bit of stuff from Livetools - Machine Tool People | Machine Tool People, they have very good tooling, and are very helpful.

regards,

John

[chucka103]

Nice Johno

I just had a look at some there stuff exactly what I'm looking for apart for the "old school" having to call for prices I'l write a list and call them for a quote

Are there prices reasonable ??

[InMesh]

Then there are these guys just recently have their own web site think ebay got too expensive for them at least they are carbide not HSS like some otherssytool

[RCaffin]

> at least they are carbide not HSS like some others
For some things good HSS beats carbide - such as in toughness and in sharpness.

Cheers
Roger

[InMesh]

Agreed I came from machining all stainless with HSS and today I still use it for turning as I can use a stone to introduce a small radius on the tool to good effect I get a lot of value with the HSS cutters on the cnc ,I have always thought carbide to be a little dull compared..

[RCaffin]

The sharpness thing: it's all about grain size. You may have noticed that the carbide vendors are now all claiming 'micro-grain carbide'?

The problem with 'carbide', which is really tungsten carbide particles in a cobalt (or similar) matrix, is that getting an edge sharper than the grain size is difficult. But with HSS you can sharpen to a much finer edge, becasue the steel behaves differently.

Where carbide has an advantage over HSS for aluminium is when the aluminium contains tiny particles of aluminium oxide - which is what the common AlOx grinding wheels are made of. HSS can wear, while carbide resists much longer.

Cheers
Roger

[newman55598]

Suncoast precision has treated me well.


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[johnno402002]

Nice Johno

I just had a look at some there stuff exactly what I'm looking for apart for the "old school" having to call for prices I'l write a list and call them for a quote

Are there prices reasonable ??

Their prices are reasonable for the quality of the cutters, You can always find cheaper ones though, it depends what you are after.