s10sakota
Well Known Member
I know I've seen a thread or two on this before, but the search didn't turn up the threads.
I am countersinking some holes in a piece of aluminum on a different airplane and they are coming out really jagged.
In the pic you will see the jagged hole, and the other hole I've smoothed out with the hand held debur tool.
But I've used the bit shown on the RV-7 and all the holes came out absolutely smooth and perfect.
What's going on now? Is the bit dull? I've tried high speed and low speed and the speed makes no difference. I've tried light pressure and high pressure and they all come out jagged. I can smooth them with the debur tool, but I'd rather them just come out smooth from the countersink tool!
Any thoughts?
Thanks
![](/proxy.php?image=http%3A%2F%2Fi345.photobucket.com%2Falbums%2Fp392%2FMark_Pensenstadler%2FIMG_1292_zpscinrxmqx.jpg&hash=879e295414fca0cfd745171742943ed5)
I am countersinking some holes in a piece of aluminum on a different airplane and they are coming out really jagged.
In the pic you will see the jagged hole, and the other hole I've smoothed out with the hand held debur tool.
But I've used the bit shown on the RV-7 and all the holes came out absolutely smooth and perfect.
What's going on now? Is the bit dull? I've tried high speed and low speed and the speed makes no difference. I've tried light pressure and high pressure and they all come out jagged. I can smooth them with the debur tool, but I'd rather them just come out smooth from the countersink tool!
Any thoughts?
Thanks
![](/proxy.php?image=http%3A%2F%2Fi345.photobucket.com%2Falbums%2Fp392%2FMark_Pensenstadler%2FIMG_1292_zpscinrxmqx.jpg&hash=879e295414fca0cfd745171742943ed5)