long thin drills

[miles_hot]

I need to drill some pilot holes in some 4" timber - I will be drilling a 2" deep hole (around 10mm diameter) and the pilot hold needs to extend below that for the screw to start off in.

Any suggestions for 3-4mm drills which are more than 3" long - even if they are thicker at the top of strength?

Many thanks

Miles

 

[OLD]

Can you mark out and drill from both sides.

 

[gasman]

Miles pm sent

 

[Racers]

Hi,

You can buy "long series" drills I have a 6mm that is 100mm long, Axminister do them or your local tool shop should be able to get hold of them.

Pete

 

[Russell]

I have 3mm drills 120mm long extra long series in stock and standard 3mm long series if you struggle to get some

 

[miles_hot]

Miles pm sent

Not received... :?:

 

[big soft moose]

we've got augers that can do that - you can buy them from axminster- problem is that long thin augers are very prone to breaking under any sideways pressure so you really need a pillar drill rather than trying to do it by hand

 

[milkman]

I saw some very long 6 mm hss drills in AHC[?] in Camberley. TT mght be as good as it gets, 3-4mm seems very thin

 

[gasman]

Miles I do not know what happened to the PM. I only said in it that I have loads of long drills - mostly orthopaedic drills - in 2.5, 3.2, 4.5 and 6mm diameter and up to 300mm long - you would be welcome to have one - I live in Eynsham between Witney and Oxford so you are not far away
Regards
Mark

 

[xy mosian]

I tried a long series 6mm twist drill last summer, in wood. Unfortunately it moved all over the place with the grain etc. In the end I used a 6mm spade bit. Dead straight over its maximum length.

I can only imagine that an even thinner bit would be more likely to drill almost anything other than straight.

xy

 

[miles_hot]

Miles I do not know what happened to the PM. I only said in it that I have loads of long drills - mostly orthopaedic drills - in 2.5, 3.2, 4.5 and 6mm diameter and up to 300mm long - you would be welcome to have one - I live in Eynsham between Witney and Oxford so you are not far away
Regards
Mark

That's a very fine offer thanks - I will swing by some time over the next week - I'll PM you in the hope if gets through

Miles

 

[jasonB]

For wood then a brad point beam drill would be good, I have a set 3-16mm at 300mm long drill quite straignt. I got them from Tilgear.

Wealden also do long & extra long twist drills

J

 

[Racers]

Hi, xy

I have ground my 6mm long drill into a brad point for making totes, it goes nice and straight.


Pete

 

[xy mosian]

Hi, pete,
Thanks for that tip. I'll try it out next time I need it.

xy