Drilling holes with a jig bore

Miguels244 · Oct 11, 2018

The cost of a jig bore is low compares to a good drill press.
For small, sub 1/2” holes is a jig bore suitable?
In particular for small holes, sub 1/4 is it a good mix between a sensitive drill and a drill press?
I can always buy a big cheap beater drill press for hogging holes, but the cost for a good precision press is well above a solid used bore.

Any how, the summary is...
If I get a small jig bore will I also need a really good small sensitive drill pres.

converterking · Oct 11, 2018

Why don't you get a cnc mill? It will do everything.

Miguels244 · Oct 11, 2018

converterking said:
Why don't you get a cnc mill? It will do everything.

Not really..quick holes in un fixed or lightly retained parts aren’t good on a CNC.
The 10 second hole becomes a two minute process.

johnoder · Oct 11, 2018

I'd hardly refer to my 15,000 Lb Jig Bore as sensitive, but it was enough so to not break 3/32 tip of center drill in 364 spots that I later turned into grooves with a 3/32 carbide ball end mill.

This repair job is in service

converterking · Oct 11, 2018

I have a cnc bed mill that still has a manual quill. I don't have manual mills anymore, the bedmill does everything that I don't want to run in a vmc.

Tyrone Shoelaces · Oct 11, 2018

Jig borers are very accurate but slow to operate. For bog standard drilling work you want a good drill press.

I suppose it depends if you're tinkering around in your own time or trying to make some money. If your shop is a hobby style shop get a jig borer, if you're working to make a living get a drill press.

Just my opinion.

Regards Tyrone.

davehud · Oct 11, 2018

Answer is yes. I've drilled many small holes on jig bores and bridgeports. For really tiny drills I like to use a finger chuck.

Toms Wheels · Oct 11, 2018

I used to use my BP for all drilling. Sold the 1/2" DP. But a few months ago I found a Burgmaster 6 spindle Turret Drill press. Its the smallest one, Max drill size is 1/4, and now use it every chance I can. Position accuracy is up to operator, but really handy for a string of holes, then countersink , Tap.

gbent · Oct 11, 2018

I have a Moore #3 that would make a dandy small drill press. I think my largest chuck is 1/2" capacity. In some ways its better than a drill press, as the counterbalanced head is much easier to move up and down than the table on a drill press.

The biggest drawback of a Moore is the tool retention method prohibits reversing the spindle. Taping would require a tapping head. The weight could be another drawback, but if its within the capacity of your forklift weight is immaterial.

Miguels244 · Oct 11, 2018

gbent said:
I have a Moore #3 that would make a dandy small drill press. I think my largest chuck is 1/2" capacity. In some ways its better than a drill press, as the counterbalanced head is much easier to move up and down than the table on a drill press.

The biggest drawback of a Moore is the tool retention method prohibits reversing the spindle. Taping would require a tapping head. The weight could be another drawback, but if its within the capacity of your forklift weight is immaterial.

Nothing a big drill press wouldn’t bridge.
I keep looking at the “sensitive drill presses” but a 1-1/2 Moore is the same price and has a hell of a lot more capabilities.

Search

Largest Manufacturing Technology Community on the Web

Search

Drilling holes with a jig bore

Miguels244

Diamond

converterking

Stainless

Miguels244

Diamond

johnoder

Diamond

Attachments

converterking

Stainless

Tyrone Shoelaces

Diamond

davehud

Cast Iron

Attachments

Toms Wheels

Titanium

gbent

Diamond

Miguels244

Diamond

Similar threads