Four layers ball #2: Tool bit

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Blog entry by Yuri posted 08-25-2012 01:17 AM 1470 reads 2 times favorited 7 comments Add to Favorites Watch
« Part 1: Ultimate ball chuck Part 2 of Four layers ball series Part 3: Making first hole »

The idea is to do holes and internal cuts with just one tool. Here is what I did:

5/8 spade bit is painted black to make a drawing on it.

Made all the cuts with dremel using cut-off disks. On left is a tool holder (was a bit a challenge to make it from steal)

one cutting side

other side

left side of the tool has cutting edge on the bottom

Centering the tool.

First cut almost as deep as 2 inch

view of the “undercut” after i made a few holes.

Hopefully the end result will be shown on the next blog

-- Live to Learn

7 comments so far

View stefang's profile


16722 posts in 3839 days

#1 posted 08-25-2012 10:34 AM

This looks absolutely brilliant Yuri. I wonder if it could be used as a handheld tool? This is a real innovative breakthrough in tool design for this type of work. Congratulations for coming up with this solution which shows a lot of expertise and creative thinking. I’m looking forward to your next blog on this.

-- Mike, an American living in Norway.

View BritBoxmaker's profile


4611 posts in 3541 days

#2 posted 08-25-2012 02:01 PM

I echo Mike’s comment.

This is design ingenuity at work.

Something special, Yuri.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging.

View LittlePaw's profile


1571 posts in 3583 days

#3 posted 08-25-2012 02:17 PM

Brilliant, Yuri!

-- LittlePAW - The sweetest sound in my shop, next to Mozart, is what a hand plane makes slicing a ribbon.

View NormG's profile


6441 posts in 3508 days

#4 posted 08-25-2012 06:15 PM

Great idea, well executed and it works

-- Norman - I never never make a mistake, I just change the design.

View Jim Jakosh's profile

Jim Jakosh

23362 posts in 3610 days

#5 posted 09-03-2012 12:24 PM

Ah, ha. I see now how you under cut from the bored hole!! You need that metal lathe to hold the puppy solid!!

Thanks for the blog…..........Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View MarkTheFiddler's profile


2068 posts in 2693 days

#6 posted 09-03-2012 01:10 PM


What an incredible mind you have.

-- Thanks for all the lessons!

View SPHinTampa's profile


567 posts in 4190 days

#7 posted 09-03-2012 03:49 PM

I really appreciate the detailed blog

-- Shawn, I ask in order to learn

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