Heavy Duty Knurling Tool

Doug Gray · Jul 12, 2023

Recently there was a temporary delay in shipping Knurling Tool Kits. This has been rectified.... All kit now shop next business day!

Doug Gray · Aug 25, 2023

Congratulations to Mr. G. Rosén of Sweden!

Posted by Doug Gray on August 25, 2023

Mr. G. Rosen of Sweden has just completed his heavy Duty Knurling Tool Kit and it looks like he has done a fantastic job!
Göran did a few mods to accommodate his smaller lathe. He was kind enough to send along an email and some photos.

Hello Doug,
I finished the knurling tool yesterday and it looks and works really well.
My lathe is a small mounted Sieg SC4-510 model and the size forced me to make a few changes to your design which I list below.
However, the design works very well, but will probably be more suitable for one size larger lathes.
My changes to the knurling tool are as follows:

Body plate (1), the nice looking fillets had to go because I needed that space in the toolholder.
Compression spring (12) changed to one made of thinner gauge wire and a wee bit softer. It could therefore be compressed more so I could work on material with a smaller diameter.
To avoid the slack between arms (2) and spring collars (7) I added a suitable O-ring on each spring collar as per picture 4.

I am now looking forward to starting work on the two Machinist Clamps.
Will try to give you a message when they are finished, but it might take some time as I am also building a twin cylinder stationary steam engine constructed by a friend of mine living in Finland.
All the best regards,
Göran
------------
G. Rosén
Sweden
ngarosen@gmail.com
Photos

2023-08-21 1_gray

2023-08-24 2_gray

2023-08-24 3_gray

2023-08-24 4_gray

Again congratulations to Mr. Rosen and a big thanks for sharing the build!

Get your knurler kit here!

Kits For The Home Shop Machinist/Tinkerer

Kits for the home shop machinist. Hi my name is Doug Gray thanks for stopping by my shop. I'm am the sole proprietor of D. Gray Drafting and Design. I lovingly create all the kits you see here in my shop. Everything from creating the drawing to assembling all the materials and packaging them up...

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Winegrower · Aug 25, 2023

I added some wrench flats to the adjustment knob...sometimes finger tight just isn't enough.

Doug Gray · Aug 26, 2024

Congratulations to Mr. Eric T. of the Netherlands!

Eric purchased the "Drawings Only" version of the Heavy Duty Knurling Tool Kit and did a fantastic job of his build.

Below are his words and photos.

Hi Doug,

Finished the knurling tool and quite happy with the end result.

Made entirely of offcuts I had in the shop. The only parts I had to buy were the spring and the knuling wheels.

Drilled and milled the upper and lower arms from a solid block of cold drawn mild steel.

The main body plate from two bits of hot rolled welded together and then milled to dimension.

For the pins I used the shanks of some old drills because I don't have any O1 tool steel.

The brass bits are made from the internals of some old pressure washer guns.

I need to get some shorter set screws for the wheel pins, because the ones I have are a bit too long.

I haven't decided yet if I'm going to cold blue the parts or spray them with Boeshield T-9.

I think the latter, because I do have that on the shelf.

I do have to do some more tests and get some experience with feeds and speeds, but the first results look very promising I think.

Thank You for making this available.

Cheers,

Eric

Congratulations to Eric T. of the Netherlands.

Get your heavy duty Knurling Kit here.