Mr Cook was asking about dental burrs a while ago, CPC in Preston have a
set of 30 diamond burrs on offer for just £2.74 + vat

www.cpc.co.uk Product code TL1035904


Ron(UK)

Ron(UK) wrote in message
...
Mr Cook was asking about dental burrs a while ago, CPC in Preston have a
set of 30 diamond burrs on offer for just £2.74 + vat

www.cpc.co.uk Product code TL1035904


Ron(UK)

noted, even if carbide coated rather than diamond, I assume the 1mm or so
ones are annealed/tempered/strong enough to take a little lateral pressure.
I looked to see what diamond edged mini cut-off wheels they had but those at
30GBP odd are probably pucker diamond dust, something else I could do with
sometimes.
somewhat related interesting discussion I recently started on uk.d-i-y on
sanding discs that I'd not seen available in DIY barns or more specialised
toolshops .

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

N Cook wrote:

noted, even if carbide coated rather than diamond, I assume the 1mm or so
ones are annealed/tempered/strong enough to take a little lateral pressure.
I looked to see what diamond edged mini cut-off wheels they had but those at
30GBP odd are probably pucker diamond dust, something else I could do with
sometimes.
somewhat related interesting discussion I recently started on uk.d-i-y on
sanding discs that I'd not seen available in DIY barns or more specialised
toolshops .


VERY little. You are supposed to let the speed do the work, not
pressure. If you try to flex the shank at those speeds, it will destroy
them.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

Michael A. Terrell wrote in message
...
N Cook wrote:

noted, even if carbide coated rather than diamond, I assume the 1mm or
so
ones are annealed/tempered/strong enough to take a little lateral
pressure.
I looked to see what diamond edged mini cut-off wheels they had but
those at
30GBP odd are probably pucker diamond dust, something else I could do
with
sometimes.
somewhat related interesting discussion I recently started on uk.d-i-y
on
sanding discs that I'd not seen available in DIY barns or more
specialised
toolshops .


VERY little. You are supposed to let the speed do the work, not
pressure. If you try to flex the shank at those speeds, it will destroy
them.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

The original context was for creating short and narrow slots in polyester
pcb board , starting from some original through holes for replacement,
legged pcb mount switches, with slightly different footprint. Would
glass/polyester board be too much for these burrs ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

N Cook wrote:
Michael A. Terrell wrote in message
...
N Cook wrote:
noted, even if carbide coated rather than diamond, I assume the 1mm or
so
ones are annealed/tempered/strong enough to take a little lateral
pressure.
I looked to see what diamond edged mini cut-off wheels they had but
those at
30GBP odd are probably pucker diamond dust, something else I could do
with
sometimes.
somewhat related interesting discussion I recently started on uk.d-i-y
on
sanding discs that I'd not seen available in DIY barns or more
specialised
toolshops .

VERY little. You are supposed to let the speed do the work, not
pressure. If you try to flex the shank at those speeds, it will destroy
them.


The original context was for creating short and narrow slots in polyester
pcb board , starting from some original through holes for replacement,
legged pcb mount switches, with slightly different footprint. Would
glass/polyester board be too much for these burrs ?


The steel shaft of those burrs probably doesn't need to be very hard, a
little flexibility might be a good thing. Unlike drills, they are
designed for lateral pressure. It`s the diamond (or whatever substance
it is) chips that do the cutting.

The burrs in my fifteen quid cheap rechargable rotary tool do the job on
fibreglass pcb material admirably.

RonUK