Drilling the prop shaft hole.

Jimbob · Post by **Jimbob** » Fri Dec 29, 2017 5:26 pm

I wish I had screwed a temporary block of wood on the inside of keel before I drilled the prop shaft hole. I had tearout and the drill bit went a bit off center when it came out. Even though it will be covered up with the shaft log, it still bugs me. If I ever build a boat again I think I might just cut a slot instead of drilling a hole.
Jim

JoeM · Post by **JoeM** » Sat Dec 30, 2017 8:43 am

Jimbob wrote:I wish I had screwed a temporary block of wood on the inside of keel before I drilled the prop shaft hole. I had tearout and the drill bit went a bit off center when it came out. Even though it will be covered up with the shaft log, it still bugs me. If I ever build a boat again I think I might just cut a slot instead of drilling a hole.
Jim

Good tip. I'll have to keep that in mind when I get there. Thanks!

kens · Post by **kens** » Sat Dec 30, 2017 10:02 am

What kind of bit did you use?
Drill bit? forstner? hole saw?

I them all, and found a hole saw to be the best,
Yes, you need a tear-out block, preferrably on both sides.

Rich Coey · Post by **Rich Coey** » Sat Dec 30, 2017 2:33 pm

Here is a link to a post that showed the hole saw I made. Easy to make, cut through fast, and it cuts straight and won't wander like a drill bit.
viewtopic.php?f=2&t=25179&p=151163&hili ... aw#p151163

Rich

Glen-L.com

Drilling the prop shaft hole.

Drilling the prop shaft hole.

Re: Drilling the prop shaft hole.

Re: Drilling the prop shaft hole.

Re: Drilling the prop shaft hole.