Where to buy cnc drills in UK

Hi, can anyone suggest where to buy good quality cnc drill bits in the uk, I'm looking for 3mm shank with 2mm drill, I'm drilling 3mm brass sheet, fed up with Chinese bits as they keep breaking, any suggestions please

Why can't you hold a 2mm shank ? This way you will not be limited by specials.

Plenty of good quality drills out there, Dormer, Guring, etc.

Perhaps his collets are the same as mine, only available in 3mm or 1/8", and larger of course. I just use carbide milling cutters for drilling,

Pete

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There is an ebay seller that goes under the name of cncpoorboy **LINK**

Always had good quality items from him at a keen price. Also dispatched and delivered promptly.

It's him I go to as a default first to see if he has want I require.

Nick

Thanks for the info, but they are all parallel shank drills, they tend to move and flex about too much, ive got hundreds of those type, the ones I'm looking for have a 3.175 shank and the drill part is about 25mm long and 2mm in diameter, the shorter type work much better, I cant understand why its so difficult to find these in the UK, but there are plenty of the Chinese rubbish around, use one and throw it away, I'm drilling 3000 precision 2mm holes on cnc so it needs to be right

Try a US seller they will more likely have 1/8" (3.175) shank tooling not the 3mm metric shank tooling you originally asked about which is what Europe tends to use.

Having said that APT do them

Edited By JasonB on 02/01/2017 18:55:03

Why do you need 25mm flute length to drill through 3mm brass. Sure the longer flute length will make them more prone to breakage???

**LINK**

Edited By mark smith 20 on 02/01/2017 19:03:54

Its just that I was advised to use the short type

Sorry i misread i thought you were using 25mm drill flute length,which seemed odd ,usually around 10mm.

Are these any good? **LINK**

Mike

I'm not sure if this is relevant to the breakages but small drills need to be run at very high speeds to get the best from them.

I'm just mentioning that because having a thicker shank may not solve the breakages, it sounds like it may be deflecting from too much downward pressure, relative to it's drill tip cutting capability at lower speeds.

Michael W

Edited By Michael-w on 02/01/2017 19:09:59

yes, thanks that's what I'm looking for, there a bit expensive

Thats the problem, "good quality" and "inexpensive" don't usually go hand in hand The APT will be good quality, may well be made in teh far east but to a high standard.

John,

Would a 'stub drill' do what you want? A 2.0mm stub drill has a flute length of ~12mm and is considerably stiffer than a standard drill. They are also easy to find.

Steve

Yes I could give that a try, I'm only drilling 3mm brass

Ignore this, senility is kicking in!

Edited By steve de24 on 02/01/2017 19:30:33

Just found some US made OSG 2mm stub bits on ebay for £5 so I will give them a try, thank you guys

Where I work we drill lots of aluminium sheet & extrusions for pop rivets (thousands per container). This is all done with stub drills in hand held windy drills. Breakages are few & far between even on the 2.5 mm dia drills. OK, most are 3.2 mm dia, but the 2.5's must amount to a couple of thousand a week.

Regards

Richard

I have a superb supplier local to me (UK) for most of my special needs (usual disclaimer).

They list the sizes you state and their stock is comprehensive, all online, or drop in if local.

Hope this works -LINK-

I bought these off ebay by HP Tec 1.6mm (no idea where they are made) but i use them for drilling sterling silver . Ive had them around 5 years and use regularly and only have had about 4 breakages in a manual Proxxon mill. I got sick of the carbide drills breaking ,so use these router bits instead . They seem very good quality.