[chrisogrady]

I need to recreate these air vents in a 3/4" piece of plywood, the hole is 3/8" wide and slightly rounded at the ends. What bit do i need, i was thinking a round nose bit but i dont think it will plunge deep enough to go all the way through the 3/4" wood.

 

[Mike]

Chris, I would suggest a 3/8" spiral up cut bit. You can save a good amount of money by using a high speed steel bit for this. It should run you around $12. Remember to make your cut in a couple passes, perhaps a 1/4" at a time.

 

[cabinetsetc]

Use a 3/8 in straight bit but make about 4 passes taking a little at a time for a good sharp cut. Rick

 

[chrisogrady]

Thanks!