Challenge Paper Drill J0-How to change the bits?

I have a lovely Challenge J0 Paper Drill from the 1970’s. It runs perfectly and I have it all ready to use. However, I can not figure out how to change the drill bits that came with the machine. I have looked online, and the PDF Challenge has available says nothing about how to change the drill bits.

Can anyone give me help with this? Thanks!!

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I’m not familiar with this specific model, but assuming it’s like every other Challenge drill I’ve ever seen, the bit should be a taper-mount. That means it’s a friction fit into a tapered socket at the base of the spindle. There should be an opening in the spindle just above the drill bit. You should be able to see the top of the bit’s taper in this hole. You insert your drill drift into this hole and lift up to pop the bit out. The drift will lever against the top of the hole on the near side and the top of the drill bit’s taper at the far side. The drill drift should look like a steel rod with one end cut off at an angle. If you don’t have the machine’s original drill drift, any hardened taper pin like a pin punch or drift pin should work. If the bit hasn’t been removed in a long time, it may require some force to lever the bit out.

This is what a drill drift looks like:
http://www.printfinishing.com/media/catalog/product/cache/1/image/5e0631...

This is what Challenge taper-mount drill bits look like:
http://adss.net/images/challenge-standard-drill-bit-measured.jpg

Thank you so much for your information. My drill bits are the same, but there is a slight coating of rust on the socket and the bit spindle. I have applied some 3 in 1 oil to try and give it some lubrication. I need to order the drill drift today. I will give this a try as soon as it arrives. Thanks again for the help. Hooray for Briar Press and all the helpful members!

I have used a small screw driver for years, you really don’t need a special tool.

you might go to a hardware store and purchase a starter punch or a small drift, this will work the same as a paper drill drift and easier to get, buy one with a tip around 3/16 in diameter. you might need to tap the drift with a small hammer and pull up at the same time. not only rust maybe holding it in but also wax a more than common bit lubricant.

Hi Chuck
Did you mean I should use wax instead of oil? I will head to the hardware store this afternoon.

Thanks for the help!
Nancy

Hi Chuck
Did you mean I should use wax instead of oil? I will head to the hardware store this afternoon.

Thanks for the help!
Nancy

Hi Chuck
Did you mean I should use wax instead of oil? I will head to the hardware store this afternoon.

Thanks for the help!
Nancy

The answer to all three is still NO, stick with oil to loosen the bits or WD40, wax is used as a bit lubricant when drilling paper.

I have no idea why that posted three times!! Ghost in the machine! Thanks. I thought that was the case.