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SYP Spilt-Top Roubo Workbench #5: Drilling Holdfast Holes

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Blog entry by grfrazee posted 424 days ago 1781 reads 0 times favorited 6 comments Add to Favorites Watch
« Part 4: Cost & Weight Estimate Part 5 of SYP Spilt-Top Roubo Workbench series Part 6: Plane Cabinet »

Happy Mothers’ Day everyone!

Finally got a chance to go back to my parents’ house for the weekend (i.e., the location of my shop). Went into the shop and this is what my bench looked like:

Looks like my dad has been at work in the 2.5 months I’ve been away. No surprises there.

I made a pair of holdfasts in a blacksmithing class last fall. When I made them, I tried to round them down to about 3/4”. Since they aren’t necessarily a standard size shaft, I had to do some experimenting to see what size hole I needed. Luckily I had a hunk of cutoff from when I made the bench that I could drill some holes in.

Turns out that 3/4” holes were the right size. I think the shafts are somewhere around 5/8”-3/4” round, but pretty irregular since I rounded down some 5/8” square stock. They hold pretty well.

I decided to drill the holes in the top using a bit brace instead of a power drill. I had bought a nice 3/4” Bosch auger bit for the task a while ago but decided against it. I figured I could get better control with the hand tool.

Once I got down to the bottom of the hole, I clamped a backer board underneath so the bottom of the hole didn’t tear out.

The first hole worked, on to the others.

Still going through. Luckily my 3/4” brace bit was sharp, the drilling went pretty fast.

And now the finished product. I think it took about 1.5 hours to do all the drilling and testing of the holes. Finally, I can use those holdfasts I made last year!

-- -=Pride is not a sin=-



6 comments so far

View Tugboater78's profile

Tugboater78

939 posts in 776 days


#1 posted 424 days ago

very nice bench, just read through your blog. hoping to start on making me a bench but time constraints lack on usable work space atm has me on hold. I have a bunch of rough reclaimed lumber, mostly Oak that i plan on using, though i want to get maybe some nice Walnut maybe for my chop and “accents”.

-- Justin - the tugboat woodworker - " nothing changed me like the first shnick from a well sharpened, decent hand plane"

View grfrazee's profile

grfrazee

321 posts in 723 days


#2 posted 423 days ago

I had originally wanted to build this bench with reclaimed lumber but couldn’t find a source in my area. I hope we get to see your efforts on your own bench soon!

-- -=Pride is not a sin=-

View Rex B's profile (online now)

Rex B

307 posts in 834 days


#3 posted 423 days ago

Love those homemade holdfasts. It adds another cool handmade touch to the bench.

-- Rex

View grfrazee's profile

grfrazee

321 posts in 723 days


#4 posted 423 days ago

Thanks Rex. They can be a bit finnicky at times, but definitely worth it.

-- -=Pride is not a sin=-

View Kestrel's profile

Kestrel

1 post in 422 days


#5 posted 422 days ago

Nice bench and holdfasts. Great opportunity and project for a blacksmithing class. I have a question about your
Moxon Vise, the screws, where did you get them? What are they called? Benchcraft has a set but $149.00, yours look like they would work great and probably less expensive.

-- Will, Moscow, Idaho, http://woodenzen.com

View grfrazee's profile

grfrazee

321 posts in 723 days


#6 posted 422 days ago

Thanks, it was a good project for my blacksmithing class. More useful than making a railroad spike knife, anyway.

I got them from Lee Valley. I would direct you to the previous post in this blog for more info.

-- -=Pride is not a sin=-

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