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Designed and manufactured in Australia by Desmond Burke, the Diamond Toolholder is a tangential lathe toolholder capable of performing five basic lathe functions. It is a revolutionary tangential lathe toolholder. Makes metal turning a breeze. Using just one HSS toolbit, you can do roughing and finishing cuts, end facing, shoulder facing, and threading.
The package includes: Diamond Toolholder, tool blank, grinding jig, and Allen wrench, and instructions. We also include a DVD and two very important and helpful articles about the Diamond Toolholder published in The Home Shop Machinist. Now, left-hand cutting Diamond Toolholders are also available for three different models.
"The Diamond Toolholder gave an impressive performance on my 9" South Bend lathe. Even an inexperienced operator should have no difficulty cutting at depths of .125" in mild steel..." --Rudy Kouhoupt (Product Review, The Home Shop Machinist July/August '93)
The Diamond Tool Holder is available in six sizes, from 6mm - 16mm tool height.
The original design for the tool meant that the shank had to be angled at 12 degrees so that it could slide and surface at the same setting. This design is a compromise to make the tool easier to use when screwcutting, so that the shank doesn't get in the way as much when cutting a thread close to the chuck. See the images below for more detail.
The 8mm, 9.5mm, and 12mm tools have been redesigned so that the tool tip can face and surface when the shank is at 90 degrees to the mandrel. This makes the tool much more convenient to set up when used in a quick change or 4-way tool post. The 8mm, 9.5mm, and 12mm tools are also available in a left hand version for cutting towards the tailstock and left hand shoulders. The left hand tool also gets around the problem of the shank getting in the way of the chuck when cutting threads.
To select the correct size tool holder for your lathe, take a measurement from the base of the tool post where the holder will sit on, to the centre height line of the lathe.
This measurement is the lowest setting that the tool bit can go down to, but the tool tip can be moved up or down for fine adjustment to get the point on centre. Of course you can always put a piece of packing under the holder to bring it up higher for a bigger lathe.
If you are using an adjustable tool post, set it close to its lowest point before measuring.
Once you have decided which tool holder is best for your lathe, use the online shop to purchase.
A size to suit your lathe:
ML8mm 3 x 7/16 x 3/8" 1/8" sq. 3-6" swing e.g. Sherline, Unimat, Atlas 6”, Myford 7 series, and the 7x10, 7x12, and 7x14 Chinese lathes
R8 3 x 1/2 x 7/16"` 1/4" sq. 7-9" swing e.g. Myford 7”, Sheldon 8
L8 For left-hand cutting toward tailstock -- same info as R8
R9.5 3 x 1/2 x 1/2" 1/4"sq. 9-12"swing e.g. South Bend 9” QC toolpost
L9.5 For left-hand cutting -- same info as R9.5
R12 3 x1/2 x 9/16" 1/4" sq. 7-9" swing for the Asian mini-lathes with big toolposts.
L12 3 x 1/2 x 9/16" 1/4" sq. 7-9" -- same info as R12 (suggested with B16)
B16 3 x 9/16 x 5/8" 1/4" sq. 12-19" swing e.g. Grizzly 12” to 19”
No left-hand tool has been designed for the B16, but the L12 works as well.
NOTE: the model number (6, 8 9.5, 12 AND 16) expresses the distance from the base of your toolpost where your tool will sit up to the lathe center.
There are two videos to watch to introduce you to the Diamond Toolholder:
and the latest, which demonstrates the Diamond Toolholder with Crobalt high strength tool bit compared to the HSS tool bits -- pretty remarkable:
COMPLIMENTS FROM OUR SATISFIED DTH USERS:
I am sure you have heard this before but the tool holder worked for me exactly as advertised. I am happy with the purchase. As it turned out I had a 5" aluminum bronze bushing to make on the day it arrived, and the crobalt tool cut the bronze with no difficulty, and with a good finish with no chatter at 400 rpm. -- ALLEN HUBBELL
I want to let you know how impressed I am with the Diamond tool system. I have used carbide for years because I never could sharpen a tool bit correctly and, while I was running short production jobs out of my garage, I needed to be able to do close, consistent repetition on my work. This system has totally changed the way I do my work and those insert tools are now collecting dust at an alarming rate. (I won't go into all the positives because I know you are well aware of them.) My oldest boy lives in Washington and is just about to take delivery of a brand new 12X36 lathe to replace his old Atlas 6 incher. Time for dad to get him an early birthday present and move him into the 21st century. I ordered him a tool today and I know he will be thrilled with it's performance. Thanks so much for providing such a great tool to both the hobby and the industry. While on the subject of the hobby, it was the Home Shop Machinist as well as Live Steam that got me, as well as my son, started. What a great thing it is to see a new generation put down the video controller and pick up a micrometer. -- JOHN DOYLE