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Anyone know?

Bri62

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Thread owner
Hi what size the shank is on these drill bits

Tungsten Steel Drill Bit DSPIAE DB-01-20​

 
I have a set and they are indeed 3.2mm / 1/8"

They don't fit in some of their own holders that are 3.0mm :tears-of-joy:so check that as well.

To be honest I don't rate them, I've broken half of mine after only a couple of uses, whereas the modelcraft / microbox set I have is still going strong after a few years. Never broken one, but lost several lol
 
Thread owner
Thanks guys looking for some 2.3mm ones the drill I have won't take 1/8"
 
To my mind, a 2mm HSS drill should be tough enough for any modelling application. Why do you need the shank on it?
 
Thread owner
o my mind, a 2mm HSS drill should be tough enough for any modelling application. Why do you need the shank on it?
I don't need it but the 2.3mm shank fits the collet in my tamiya electric drill nice and having them all the same is good no matter if it's a 0.4 or 2.3 drill
 
I don't need it but the 2.3mm shank fits the collet in my tamiya electric drill nice and having them all the same is good no matter if it's a 0.4 or 2.3 drill
Ah, get it now, you have a collet chuck, not a four jaw. Would another approach be to look for a different collet set for the chuck so standard drills would fit?
 
Thread owner
The actual hole in the screw on collet cover is only small so that's the limiting factor.
found these
71Hh5uBnlBL._AC_SX679_.jpg
 
Not making it easy for you are they ;) . Looks like they‘ll do the job though :thumb2:
 
Thread owner
Yeah Tim still got a shed load of holes to open up and the clear plastic is very brittle and blunts them pretty fast
 
You can resharpen HSS quite easily. Used to be able to buy a device to sharpen mini drills, but I can’t remember what it was called……
 
You can resharpen HSS quite easily. Used to be able to buy a device to sharpen mini drills, but I can’t remember what it was called……
Drill sharpening tool ?.... (sorry mate, couldn't resist...lol)
 
I have a set and they are indeed 3.2mm / 1/8"

They don't fit in some of their own holders that are 3.0mm :tears-of-joy:so check that as well.

To be honest I don't rate them, I've broken half of mine after only a couple of uses, whereas the modelcraft / microbox set I have is still going strong after a few years. Never broken one, but lost several lol
Micrbox every time, some of the other knockoff offerings are s............ and made of the same stuff. Like you I can go through the cheapies like water...
 
Micrbox every time, some of the other knockoff offerings are s............ and made of the same stuff. Like you I can go through the cheapies like water...
Must admit I just buy replacements as job lots ten at a time and use the micro box to hold them. Don’t break many, even the very small ones , but I don’t use them powered. I just use them manually powered in a hand Chuck. I think powered mini drills are designed to break drills and sell more drills :upside: In sheet stock I sometimes just drill a pilot hole and open it to size using a five sided tapered broach.
 
Dspiae drill bits are far to brittle and snap if you look at them weird.
I have had some drill bits several years and not broken them, those from Dspiae I went through a box in an afternoon. Three broke finding centre!
 
WELL when i first started work in crane fruehuaf at the tender age of 16 it was my first job of sharpening all the thounds of domer drills on a machine an then after that i just then an now just sharpen them drills by hand on a bench mounted grindein wheel an its just a matter of makin sure i dont back them off wrong so the cuttin edges are backwards as it easy done if not concentratein
chrisb
 
Hi what size the shank is on these drill bits

Tungsten Steel Drill Bit DSPIAE DB-01-20​

I replied to your email, didn’t you get it? They are 3.175mm, as people have said, tungsten is much softer than steel and they do break easy
 
Must admit I just buy replacements as job lots ten at a time and use the micro box to hold them. Don’t break many, even the very small ones , but I don’t use them powered. I just use them manually powered in a hand Chuck. I think powered mini drills are designed to break drills and sell more drills :upside: In sheet stock I sometimes just drill a pilot hole and open it to size using a five sided tapered broach.
I agree, I went daft at the comps and bought myself an archemedes drill not realising you need two hands to use it, and there go all the drills....
 
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