Aug 23, 2010  Diamond Toolholder Model B16 Bay-Com: Videos, Books, Diamond Toolholder and Resources for Home Machinists and Amateur Machine Shops It was recently recommended to me. Ebay Diamond A8 Tangential Tool Holder starting bid.

I have the diamond toolholder (DTH) but found the compound and AXA 100 QCTP on my 9x20 lathe is too flexible. If I put an AXA 250 Wedge type QCTP on a plinth block with the DTH, it works much better, but I lose the compound.My 9x20 has a donut mount under the compound so it is very stiff with normal tooling. I may try the 4-way tool post instead of the QCTP. I noticed that the diamond tool bit is much further away from the QCTP support and think this is causing the flex.Any suggestions would be helpful. Sorry to dig this up, but wouldnt you figure i would find this thread after my run-in with the 'hobby-machinist' forum. Anyway, here is the info on this tool from there website.

I purchased one a week ago and will be testing it out as soon as it comes in the mail! Happy Reading!!The Diamond Tool Holder was originally developed in Australia by Des Burke in 1985 and manufactured by him until 2006.

At the age of 80 Des finally hung up his production overalls to spend more time in his shed on hobby engineering.Since Des started the Diamond Tool Holder many thousands have been sold across the world, the majority in Australia and the USA where our distributor, Bay-Com, handle our sales.UK customers can now order direct from our distributor. Click here for detailsUnlike conventional lathe tools the High Speed Steel (HSS) tool bit is held at a tangential angle to the work piece. Tangential tool angle Conventional tool angleHolding the tool bit in this position provides all the clearance angles required for general cutting purposes. Leaving only the top rake to be put on using the grinding jig that comes with the kit.Due to this tangential angle, all the cutting forces will be transferred down through the length of the tool tip.

This together with a body cast in 4140 heat treated steel makes for a very rigid tool.The Diamond Tool Holder utilises a standard piece of square section 1/4' HSS, inexpensive and easily available from any engineering supplies. One tool bit blank is supplied with each kit.Resharpening is fast and simple using the supplied grinding jig. Just clamp the tool bit in the jig and run it across a regular bench grinder.

Due to the design of the holder, this is the only face that needs grinding.Using the same jig, it is easy to grind the angles for a 55 or 60 degree screw cutting tip by using the V groove at the front of the jig. The holders will also accept 1/4' diameter round HSS for use as a round nose tool and the jig will sharpen this too.For more information on the Diamond Tool Holder click the Features and Tips button, or watch the video of the tool in action. For information on how to select the correct size tool for your lathe, click the Sizes and Ordering button.The Diamond Tool Holder is available in five sizes, from 8mm - 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. Seamus7227 my brother spammer. Did you finally order them from Bay Com. You will never regret it. They are simply the best. Everyone complains how expensive they are.

But in reality. They are so inexpensive.

Ive used the same round and square bit cutter for more than a year now. 30 seconds to sharpen them and get them back in the holder.

The same bit (with a 30º compound) I can face. Then make a traveling cut toward the headstock. Then drive it in 30 thou. And make a cut toward the tail stock. And the surface finish is second to none. Don't forget you put you on to them.

That's right. Seamus7227 my brother spammer. Did you finally order them from Bay Com. You will never regret it. They are simply the best. Everyone complains how expensive they are.

But in reality. They are so inexpensive. Ive used the same round and square bit cutter for more than a year now. 30 seconds to sharpen them and get them back in the holder.

The same bit (with a 30º compound) I can face. Then make a traveling cut toward the headstock. Then drive it in 30 thou.

And make a cut toward the tail stock. And the surface finish is second to none. Don't forget you put you on to them. That's right. Perhaps a Good Tool for Cutting Tapers?I looked at the videos for the Diamond Tool Holder and it looks like it might make cutting tapers on a metal lathe a bit easier with more support for the cutting face, and creating a better finish. Clearance between the live center in the tail stock and the tool bit can be a problem on small items and this holder might help in that department, too.

To date I have found it a challenge to get as smooth a finish on a taper cut as on a straight forward cut. I use HSS and sharpen and shape my own bits. I think I may acquire this in the 12mm size with the tool bit sharpener holder; I never met a tool I couldn't love. Here are a couple videos of me using the Diamond Tool holder on my South Bend 9A Circa 1950 model with a half horse motor.

You will notice I make a face cut can be made both forward and backwards and the same the the longitudinal cut.Ive cut 7075 Aluminum, 147 Copper, 12L/14 Cold Rolled Steel, 303, 304 & 316 Stainless, 6alv Titanium and an assortment of plastics and acrylics with no problem. Ive had my cutter bit for more than a year (as well as a round cutter bit, not shown).

10 seconds in the special sharpening jig and another 60 to get it back on center and down the road I go for about a week (stainless and titanium are a bit more often when it comes to Sharpening.Here is the Link to the Copper roundHere is the Link to the 12/L14 Round (both the copper and the 12L/14 were 3/4 inch). Here are a couple videos of me using the Diamond Tool holder on my South Bend 9A Circa 1950 model with a half horse motor. You will notice I make a face cut can be made both forward and backwards and the same the the longitudinal cut.Ive cut 7075 Aluminum, 147 Copper, 12L/14 Cold Rolled Steel, 303, 304 & 316 Stainless, 6alv Titanium and an assortment of plastics and acrylics with no problem. Ive had my cutter bit for more than a year (as well as a round cutter bit, not shown). 10 seconds in the special sharpening jig and another 60 to get it back on center and down the road I go for about a week (stainless and titanium are a bit more often when it comes to Sharpening.Here is the Link to the Copper roundHere is the Link to the 12/L14 Round (both the copper and the 12L/14 were 3/4 inch). I just ordered the 16mm L/H and R/H Diamond Tool Holder kit for my PM1340GT lathe direct from EccentricEngineering in Australia for $235 Australian.

I was concerned about the weight for postage purposes, as nowhere have I found weights provided for the kits. I ordered just the kit and no extras so the weight was in the.5 - 1 kilogram range (essentially 1 - 2 pound range) for a cost of $38 Australian. Total bill was $273 Australian or $238 US plus some change. Will be interesting to see how long it takes to get here. I have some 5% and 8% cobalt bits in 5/8' I will try with this kit.

The Diamond Toolholders arrived from Australia today; eight days from date of order to arrival at door is pretty darn good. Tool quality appears very high and I can see where a step provision has been made in the tool holder itself for an adapter to allow the use of smaller tool bits (except I didn't order the adapter - of well). Can't wait to start using the new holders. I also ordered cobalt-HSS tool bits that are 5%, 8%, and 10% cobalt in 5/16' square by 2.5' long to fit this tool holder. I ordered 5/16' round tool bits, but they are not available in cobalt from ENCO.

Sony vaio vgn fz210ce camera driver for mac free. A tool bit sharpening jig is also provided to allow you to properly sharpen the bits.