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Clark Deep Hollowing System
Clark Deep Hollowing System
Clark Deep Hollowing System with companion Clark Steady Rest

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Clark Deep Hollowing System
US patent 7,191,689 B2
Our Price: $490.00

: HB


Size Swing - HB

Lathe Gap Size

Lathe Type

Description Technical Specs Extended Information
Original bar raw material is no longer available so a more expensive alternative has been obtained but just the raw
bar alone is an extra $100 cost to us. there is additional cost of production and machinery as well but we are not passing along those costs. also all raw materials have gone up significantly in price so eventually all product prices will have to increase. Darn...

Hollowing beyond 20" deep
! Small or large projects. More adjustable - check it out! See our mini lathe system for 12" swing lathes as well...

This is a very high quality unit with rugged construction using with chrome-molly hardened arms and through tubes. Painted for a durable and beautiful finish! Select your favorite color, although red is our trademark color.

RAW METAL option is now available with discount for no painting. This option gives the turner the option of getting the system in raw metal.

The basic system includes 48" hollowing bar, angle of attack adjustment feature, cross bar and uprights with attachment plate with bolt and washer.

There are various optional accessories such as the guarded tool rest, the laser system,1/2 & 5/8" adapters, side handle or end handle, extra base for external turning, cutters and straight and curved holders, lathe extender base, Fulcrum Support Tube, and new video thickness guide that takes the place of the laser and includes a video camera and TV. We now have a segmented bar as well that is shown on video. To order a segmented bar you can just let me know in the note section what length bar is desired and then order the 14" or 18" extension as an additional accessory. Our newest holder is articulating, segmented, and expandable for hollowing closed forms. The steady rest shown is also at an extra cost...

The Clark Deep Hollowing System can be used on 16" swing and larger. The new Mini Hollowing System is for 12 to 14 inch swing lathes with a shorter bar and narrower base. It comes standard with a 24" bar and the extension is an extra accessory which can be ordered from the Hollowing Parts link. The smaller systems can be upgraded with larger parts for bigger lathes to allow a turner to grow into a larger lathe without having to purchase an entirely new system.

With the Fulcrum Support Tube, hollowing from 15 to over 20" deep is greatly improved. The limit on depth is length of the hollowing bar and having enough room to mount the laser system.

  • The Clark Steady Rest is designed to compliment the hollowing system.
  • Click on the video tap above to learn more. Order the basic system above but...
  • DON'T MISS THE PARTS AND ACCESSORIES PAGES THAT CAN ONLY BE REACHED BY hovering over the menu on the top so see the drop-down panel labelled Hollowing Parts. Watch for the fly outs while hovering or navigate by clicking on the subsections that appear at the top of the page.

Basic Clark Deep Hollowing System
Clark Deep Hollowing System with laser and Fulcrum Support Tube on a 20 inch swing lathe.
  • The Clark Deep Hollowing System (US patent 7,191,689 B2) and companion Clark Steady Rest can be used on the smallest projects up to the largest that will fit on your lathe. It is useful for more than just deep hollowing. It can be set up to do external turning with an extra base. See the video to see how it is done.

Fulcrum Support Tube 12" Banjo AE.) Holder - Articulated 1/4" Cutter BE.) Cutter 3/4" Round Carbide
Our Price: $125.00
Our Price: $85.00
Our Price: $60.00
Our Price: $50.00
Fulcrum Support Tube 12" Banjo Holder - Articulated 1/4" Cutter Cutter 3/4" Round Carbide

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 7 Write a review »

  1 of 1 people found the following review helpful:
5 of 5 Deep Hollowing system May 30, 2020
Reviewer: Curtis Harris from Corpus Christi, TX United States  
Just used my deep hollowing system for the first time today and I was blown away!  When I first unboxed it I was worried that it was over kill.  This is some seriously heavy duty equipment but on the lathe it glides around and handles like a dream.  My first piece was a dry hard piece of mesquite and it was so easy to remove material I couldn't believe it.  I know this is only my first use but this thing is amazing.  Looking forward to adding a laser for sure.

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  0 of 0 people found the following review helpful:
5 of 5 System is not just good, it is great! January 17, 2018
Reviewer: dennis weiner from New City, NY United States  
There are no words that can express my satisfaction.  I am still using my old boring bar system which I purchased at aaw 2002 providence RI symposium.  We added a few customized bars, a fulcrum and a cross support. The customized bars connect to my old D bar. I can now hollow up to 24 inches without vibration.  I only have two feet behind my Oneway lathe bed. This solution was collaborated with Keith’s ingenuity and manufacturing ability.  The Spin Doctor has spun my old boring bar straw into gold!

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  1 of 1 people found the following review helpful:
5 of 5 The king of hollowing systems February 22, 2017
Reviewer: Gregg Schultz from Lynd, MN United States  
In over twenty years of turning hollow forms I have been able to try every system that is out there, and a bunch of homemade rig's of every setup possible.  I found Keith's setup online and after a bit of reading and thinking about his setup I knew I found the golden ticket.  Seriously, this is the best thing for hollowing on the market.  From small diameter to the largest and longest piece your lathe can hold, this thing works.  And beautifully.  If there is a better setup out there I would have to see it to believe it.  And even then, my unit is not for sale.  Awsome, doesn't fully explain Keith's setup!!  Thanks, Gregg.

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  0 of 0 people found the following review helpful:
5 of 5 Deep Hollowing Gem August 23, 2015
Reviewer: Chris Carskaddan from Great Falls, VA United States  
After looking at and testing most of the deep hollowing systems on the market, I went with the Clark model.
Its many advantages over all of the others will allow you to easily turn pieces you've only dreamed of. In just my third week of using the system I turned a 20 inch end grain, walnut vase that is stunning.
Here are just several of the many benefits of the Clark Hollowing System:
1. Ease of set up and a relatively short learning curve.
2. Incredibly well engineered and built like a tank, including the largest boring bar you can find commercially.
3. Price. I would have gladly paid $900 or more for this system.
4. Communication. Pre and post sale, Keith Clark will always answer your questions and help you get the most out of the tool.  
The Clark Deep Hollowing System has taken my woodturning to levels I never thought possible.
I couldn't recommend it any more highly.

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  1 of 1 people found the following review helpful:
5 of 5 Performance June 6, 2015
Reviewer: Mike Stall from Sugar Land , TX United States  
The Clark system works very well.  Today I finally set mine up and hollowed a small vase about 13 inches deep.  Because of the laser and the super high quality steady rest this is the thinnest vase I have ever made.  It is less than 1/4" thick from top to bottom.  Set the cutter at the correct angle or it will bounce rather than cut.  Love it.

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