How to drill a 17mm diameter circle on a 5mm thick aluminium?

[Tux]

I just have a AC powered hand drill ...
but I failed to find a 17mm diameter drill head fit my drill. Any tools I can used ? I wanna make a perfect circle

Thanks a lot for help

[hohomok]

I just have a AC powered hand drill ...
but I failed to find a 17mm diameter drill head fit my drill. Any tools I can used ? I wanna make a perfect circle

Thanks a lot for help

TUX:
用擴孔 器

[Tux]

I just have a AC powered hand drill ...
but I failed to find a 17mm diameter drill head fit my drill. Any tools I can used ? I wanna make a perfect circle

Thanks a lot for help

TUX:
用擴孔 器

thx a lot hohomok
where can I get one? and how to use it? really thanks a lot

[sung9918]

買 hole saw 有 17 mm 幾百元吧....

你是不是要裝真空管.....
一次給它買齊.......

[apple2e]

鴨記有開孔鑽頭賣，有平有貴(link below just for reference)
http://www.chinatianxiang.com/gsgjskkq.htm

好似有分鑽 木、金屬、雲石、玻璃幾種

[hohomok]

這樣子的
http://www.keces.com.tw/~korping/diypro ... 02_001.jpg

[Tux]

Is that 擴孔器?...
image source from KECES

[Tux]

鴨記有開孔鑽頭賣，有平有貴(link below just for reference)
http://www.chinatianxiang.com/gsgjskkq.htm

好似有分鑽 木、金屬、雲石、玻璃幾種

thx!
I asked the shop keeper for the details
but they seems dunno if those hole saw can be used to drill 5mm thick Aluminum....
for 16mm model...
price from $16HK $76HK and $112HK
I dunno how to choose....
I just bought a 擴孔器:mad:

[Tux]

買 hole saw 有 17 mm 幾百元吧....

你是不是要裝真空管.....

Yes! I wanna drill for headphone socket and for tubes
thx!

一次給它買齊.......

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

[hohomok]

Tux:
是, 我買了個30mm的轉貓眼管的洞,轉了一晚才行x_x

[Tux]

Tux:
是, 我買了個30mm的轉貓眼管的洞,轉了一晚才行x_x

I bought a 20mm only.. for trying to drill headphone socket size(17mm) , need $45HK... hope will successful

Thanks!