holesaw

[rsgaz]

I dont get that, in the picture it has little and big thread, so why cant you fit any of the two thread size holesaws

Ahhh, just watched the video. I thought that with the Oops Arbor...

...that you're supposed to put it directly into the drill chuck, therefore meaning that you need to use the two different size threads to put holesaws onto.

That's not how it works after all. You take the pilot bit out of a standard arbor and insert the oops arbor where the pilot bit fits, thereby allowing any combination after all, as the oops arbor would fit into either an A1 or A2 arbor.

Gaz