* What Do You Know About Annular Cutters?
* Do you have some?
* How do you like them?
* Compared to what?
On 27/10/2021 18:58, Bob La Londe wrote:
* What Do You Know About Annular Cutters?I've got 15 of them in sizes from 10mm to 49mm and use them regularly in
* Do you have some?
* How do you like them?
* Compared to what?
the lathe and mill for cutting holes. They produce accurate size holes,
much better than the Starrett hole saws I have, and sometimes the cut
slug is useful. In the BP mill I just hold them in a 3/4" collet, in the lathe I use a modified MT to MT adapter to take them although I
subsequently found you could buy holders for them to suit various MT
sizes. I think you can tell I like them.
On 10/27/2021 11:11 AM, David Billington wrote:
On 27/10/2021 18:58, Bob La Londe wrote:
* What Do You Know About Annular Cutters?I've got 15 of them in sizes from 10mm to 49mm and use them regularly
* Do you have some?
* How do you like them?
* Compared to what?
in the lathe and mill for cutting holes. They produce accurate size
holes, much better than the Starrett hole saws I have, and sometimes
the cut slug is useful. In the BP mill I just hold them in a 3/4"
collet, in the lathe I use a modified MT to MT adapter to take them
although I subsequently found you could buy holders for them to suit
various MT sizes. I think you can tell I like them.
I do more machining (mostly CNC) than fabrication, but recently in a fabrication project I had to punch 4 1" holes in 1/4 wall tube, and a
1" hole in a piece of 3/8 flat bar. I smoked a decent Lennox bi-metal
hole saw, and drilled the 5th hole with Silver and Deming bit on the
mill. It got me to thinking about annular cutters, and yes that the
slug might be usable had not escaped me. If nothing else so I could
give away bags of slugs. LOL.
FYI: The S&D bit (with a web diameter pilot) cut its hole as fast or
faster than the hole saw, and it doesn't even look like it needs to be sharpened. Ok, it is a 5HP mill and I put it in back gear.
Thanks for the feedback. I'm seriously considering adding a set or
two now.
"David Billington" wrote in message news:slc4p6$kou$1@dont-email.me...
On 27/10/2021 18:58, Bob La Londe wrote:
* What Do You Know About Annular Cutters?I've got 15 of them in sizes from 10mm to 49mm and use them regularly in
* Do you have some?
* How do you like them?
* Compared to what?
the lathe and mill for cutting holes. They produce accurate size holes,
much better than the Starrett hole saws I have, and sometimes the cut
slug is useful. In the BP mill I just hold them in a 3/4" collet, in the lathe I use a modified MT to MT adapter to take them although I
subsequently found you could buy holders for them to suit various MT
sizes. I think you can tell I like them.
----------------------
I have a small Clausing mill in a crowded basement shop, so I usually
cut and drill structural steel such as the gantry track outdoors. I
learned to locate, drill and tap holes in steel fairly accurately with
hand drills when building large custom machinery. My 16' gantry track assembly has about two dozen 3/8" (0.370" shank) bolts in 3/8" drilled
holes. Most can be started by hand.
Do you think annular cutters would work hand-held, or in a Portalign
drill guide which isn't all that much steadier?
I save thicker hole saw cutouts to make bushings, spacers, drilling
guides etc on the lathe.
* What Do You Know About Annular Cutters?
* Do you have some?
* How do you like them?
* Compared to what?
Sysop: | Keyop |
---|---|
Location: | Huddersfield, West Yorkshire, UK |
Users: | 296 |
Nodes: | 16 (2 / 14) |
Uptime: | 42:33:23 |
Calls: | 6,648 |
Files: | 12,193 |
Messages: | 5,329,573 |