Hi Henning:
I know this is Somewhat off topic but I hope you can help me anyway.
I saw something on TV yesterday. In a program Ocean county choppers
they were using a kind of stepped size drill bit. Can anyone help on info
on this tool as I have newer seen anything like that before. I must admit
I'm a bit of a tool buff. And that one is definitely different.
I think it is Orange County Choppers... and the stepped drill bit they were
using is very easily found in the US. I have several of them.
The original drill bit was made under the name of Unibit. They are still
available... these bits are very handy for drilling large(r) holes in thin
metals.
A US-based vendor of low-cost tools (Harbor Freight, www.harborfreight.com)
offers the Unibits in a number of different sizes. Go to
www.harborfreight.com and enter 'step drill' for SEARCH criteria. You will
find a number of both Unibit products AND some made in China. I have both
the Unibit and Chinese bits and they both seem to work well. I have a 3-bit
set of Chinese-made bits, which did not show up on the search, but if you
are interested, I will try to research that set further.
I use step drills quite often. They do not 'bite' into the work as badly as
regular twist drill bits and do a pretty good job of de-burring the holes
they drill (at least from the entry side...) though you will still want to
de-burr the other side of your work.
Unibits are available from many other US vendors, and they are probably
also available worldwide as well.
73,
Tom Hammond N0SS
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