Pillar drill

[Covbandit]

Hi
I have inherited my Father-in-laws Pinnacle pillar drill. I would like to put a larger chuck on it from 1-13mm up to 16mm but gets into taper sizes which I assume is 12.5mm and I’m unsure what to buy.
See pics
Any help would be appreciated

 

[ChaiLatte]

Do you see the stamping on the data plate that says 'Capacity: 3/8" 10mm'? Do you see the speed range stamped on the same plate?

Both are there for a reason: they are the parameters within which the manufacturer recommends the machine be used.

If you are to use it at 60% over that capacity (16mm), do you think it will live long and prosper?

If you are to use it to drill at 16mm diameter, what is a sensible speed for that operation in different materials?

https://www.sserc.org.uk/wp-content/uploads/2011/12/drill-speed-chart.pdf

Do you have an existing chuck for it? That will likely tell you the taper required. Common drill spindle tapers shown here:

https://www.arceurotrade.co.uk/projects/Info/Drill-Chuck-Taper-Dimensions.html

It looks like your caliper is saying 10.25mm, so B12 is close, but you need to confirm. Searching for B12 drill chuck does not easily find anything over 10mm capacity*. Hence, we return to the reason the data plate is stamped as it is.

* There is this one:
https://www.aptoolsltd.co.uk/shop/r...6654-6655-6656-6657-6658-6659-6660-6661-6662/

Edit: thinking some more, the imperial scale on the caliper looks closer to 1/2" so it might be JT2.

 

[Covbandit]

Do you see the stamping on the data plate that says 'Capacity: 3/8" 10mm'? Do you see the speed range stamped on the same plate?

Both are there for a reason: they are the parameters within which the manufacturer recommends the machine be used.

If you are to use it at 60% over that capacity (16mm), do you think it will live long and prosper?

If you are to use it to drill at 16mm diameter, what is a sensible speed for that operation in different materials?

https://www.sserc.org.uk/wp-content/uploads/2011/12/drill-speed-chart.pdf

Do you have an existing chuck for it? That will likely tell you the taper required. Common drill spindle tapers shown here:

https://www.arceurotrade.co.uk/projects/Info/Drill-Chuck-Taper-Dimensions.html

It looks like your caliper is saying 10.25mm, so B12 is close, but you need to confirm. Searching for B12 drill chuck does not easily find anything over 10mm capacity*. Hence, we return to the reason the data plate is stamped as it is.

* There is this one:
https://www.aptoolsltd.co.uk/shop/r...6654-6655-6656-6657-6658-6659-6660-6661-6662/

Edit: thinking some more, the imperial scale on the caliper looks closer to 1/2" so it might be JT2.

Thanks for this info!
It never will be used for much over sheet metal or wood but was considering a keyless as my chuck key hole is very slightly oval and difficult to tighten up sometimes.
https://www.manomano.co.uk/p/high-q...uck-1-16-mm-with-integral-2-mt-shank-61901483

 

[Spectric]

For sheet metal you would use a hole or fly cutter for many holes as larger drill bits will just grab.

 

[Sideways]

16mm chuck waaay too big for a little 3 speed drill like that.
If you want to make bigger holes in sheet, look at these TC hole cutters. They fit the 13mm chuck on my cordless drill. That's as much as you would want to size up and not so that you can try and push a 13mm drill bit through thick steel either.

I'm no longer a Starrett fan but I have a few of these in the 16-25mm range. They are quite decent and appear at good prices on ebay from time to time.

 

[ChaiLatte]

They fit the 13mm chuck on my cordless drill.

Maybe to help him further, could you say if they would go into the 10mm capacity chuck he currently has.

It is also possible to buy arbors for standard holesaws (Starrett A1 and A10) that would fit into the 10mm chuck.

 

[Sideways]

Maybe to help him further, could you say if they would go into the 10mm capacity chuck he currently has.

At the time I couldn't answer that as I don't have any chucks smaller than 13mm and made a quick post using an old photo...
But it turns out they should (just) fit in a 10mm chuck. It's not very clear from the photo but they have three flats at 120 degrees to stop them slipping in the chuck jaws.
HTH