Drilling 7/8" hole in UHMW
 

Next up is making said holes in F-8115 thrust washers.
What method gives the nicest holes? A carpenter's hole saw may not be accurate or pretty.
Couldn't find any reference to this.

Forstner
 

I would use a Forstner bit. Whole set from Harbor Fright is pretty cheap.

Thanks Larry. Don't have a HF here but will look at mail order.
Will also try out a step drill bit on some scrap

Home Despot flat whiz bit would work. Make sure the piece is securely anchored else it will tour the shop !

https://www.homedepot.com/p/Bosch-Da...5010/203274429

Depending on the thickness of the part, a hole saw might work pretty well. You know, one of those things that looks like a cylinder with teeth at the end.

Dave

I've found spade bits do a beautiful job on UHMW. Just feed it slowly.

Thanks guys, I'll test out a spade bit first. Path of least resistance etc.

Where?
 

where do these thrust washers go? I don't remember making these.

They are applicable to the ground adjustable rudder pedals. I don't know about the other style pedals.
They fit on either end of the shaft that the pedals hinge on. It's a strange use of the term as there is no lateral force.

BTW the spade bit worked out great. Quick, easy and I didn't have to buy anything.