Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

The section titled key data for thread at the end of the pdf may be of use

http://www.georgefischer.co.uk/mallpipethreads.pdf

also

http://www.draughtsman.co.uk/informa...drills/bsp.htm

looks like 45mm tap drill from the last reference

wrote:

Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

wrote:
Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

The core diameter for a 1 1/2" BSPP thread is 1.7656", according to two
old books I have. If you need any other data just let me know. I have a
table which goes up to 18" BSPP which I could scan for you.

I thought about putting it on my website once, but never got round to it.

Chris

"Christopher Tidy" wrote in message
...
wrote:
Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

The core diameter for a 1 1/2" BSPP thread is 1.7656", according to two
old books I have. If you need any other data just let me know. I have a
table which goes up to 18" BSPP which I could scan for you.

I thought about putting it on my website once, but never got round to it.

Chris


Wouldn't mind that as well, maybe it will just sit in the collection of old
data, as I currently use up to 3" on the farm, but it may be needed one
day... What about the drill sizes for 3/4"BSP and 1"BSP?

Pete

Bushy Pete wrote:
"Christopher Tidy" wrote in message
...

wrote:

Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

The core diameter for a 1 1/2" BSPP thread is 1.7656", according to two
old books I have. If you need any other data just let me know. I have a
table which goes up to 18" BSPP which I could scan for you.

I thought about putting it on my website once, but never got round to it.

Chris



Wouldn't mind that as well, maybe it will just sit in the collection of old
data, as I currently use up to 3" on the farm, but it may be needed one
day... What about the drill sizes for 3/4"BSP and 1"BSP?

Pete

Here's the best table of BSPP data I have:

http://www.mythic-beasts.com/~cdt22/bspp_data.jpg

It's from "Fowler's Mechanics' and Machinists' Pocket Book 1942". Some
of the numbers are a bit fuzzy, but you should be able to figure out
what they are. If not let me know and I'll check the original.

Best wishes,

Chris

Thanks Chris,
thread data filed away for posterity!
Pete

"Christopher Tidy" wrote in message
...
Bushy Pete wrote:
"Christopher Tidy" wrote in message
...

wrote:

Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

The core diameter for a 1 1/2" BSPP thread is 1.7656", according to two
old books I have. If you need any other data just let me know. I have a
table which goes up to 18" BSPP which I could scan for you.

I thought about putting it on my website once, but never got round to
it.

Chris



Wouldn't mind that as well, maybe it will just sit in the collection of
old
data, as I currently use up to 3" on the farm, but it may be needed one
day... What about the drill sizes for 3/4"BSP and 1"BSP?

Pete

Here's the best table of BSPP data I have:

http://www.mythic-beasts.com/~cdt22/bspp_data.jpg

It's from "Fowler's Mechanics' and Machinists' Pocket Book 1942". Some
of the numbers are a bit fuzzy, but you should be able to figure out
what they are. If not let me know and I'll check the original.

Best wishes,

Chris

wrote:
Hi
i need a data sheet for all BSP threads till 2". i can only find it
till 1" on the internet. particularly, i need the drill size for 1 1/2"
BSP.

thanks in advance.

aliT

http://www.newmantools.com/taps/bsp.htm

Try this link

Cheers