End Mill Sharpening Guide : Universal Tool & Cutter Grinder AKA D Bit Grinder

Complete guide to sharpening end mills on the D-bit grinder. Covers sharpening the end cutting edges and the flutes using the flute grinding attachment that the D-bit grinder usually comes with. These grinders are clones of the original Deckel grinder and are sold around the world with different model numbers such as PP-U3, TM-U3, U2, U3 etc.

[martybadboy]

10:20 Off topic but I love nature. Man is intently demonstrating knowledge. Man's dog barks; alerting the pack to a potential threat. Man stops demonstration, evaluates the threat, determines risk low, and continues demonstration. All this in less than a second. Beautiful.

[zvonibab]

Thank you for the superb video, I learnt everything from you, and it took me 7 months to pick the courage to start since all those angles were too much for me. You have cleared the fog .

[angelramos-]

Hey dear.Three years now.I hope you are doing very well.Best video of this sort.Thank you.

[Preso]

Thanks for the video. I have just purchased my grinder and sharpened a few lathe tools. Drill bits and milling cutters are next. On the Quorn T&C grinder, the rails are protected from grit with felt washers held under screwed down metal cups. I might look at that mod for my machine.

[sharkbaitsurfer]

Wonderful attention to detail making a potentially complex process simple to understand - thank you

[gangleweed]

Just revisited this site again after about six months and I've used a number of 4 flute brazed carbide milling cutters that have straight carbide tips were brazed on with the tip square to the axis not is without a helix angle and I can state they are extremely easy to sharpen not having the helix to contend you need is to slide the cutter along a pin and Bob's you uncle, no twisting and sliding needed.
At the same time I've used the cutters with a 3mm depth of cut as the mill is a small bench top mode so most of the wear occurs on the end 3mm of the cutter which makes sharpening very easy..

[drevil]

I usually do this by hand with limited results. This was a good tutorial.

[brandontscheschlog]

Excellent details! Just got a D-bit and I will be using your vids to learn. Thank you!

[jimparizek]

I've always wanted to see a universal cutter/grinder in operation. Interesting. I use a Darex which has a air bearing spindle for sharpening the flutes. Both machines pretty much do the same thing.

[AlwaysBored]

Excellent video thanks for taking the time to film everything so clearly.

[gordonjones]

Superb demonstration. I've seen similar demo's, but I don't speak Chinese. The release screws and adjusting pins allowing 90+ and 0- settings are critical bits of info I have not seen anywhere else. Good on ya.

[captcarlos]

Hello PDU.
Having just purchased the same unit your video is timely.
A few points I have found.
Regards the flute grinding attachment.
The clamp coller has a counterbored hole that matches up with a taped hole in the head.
With the, I think M5 x 15mm cap head, in the coller can be nipped for 5c removal or installation.
Useful for positioning as well.
I like that you use the inner part of the wheel with the tool positioned so the grinding is into the edge.
Much better for grinding carbide as well.
Good explanation, concise with useful information.
Initially I thought the supplied instruction book was reasonable, it is not!!
Thank you.

[cuttingedgeprofilesenginee]

I've been looking for a video like this for a long time. Clear instructions. Well done.

[gregfeneis]

Very nice and thanks for the demonstration.
When sharpening the end bits, why is the D bit grinder's tool holder rocked to present the tool's cutting bit to the grinding wheel?
Would it also work if the user found a suitable setting for the knob that controls the rocking and left that setting alone. Then, move the shaft axially to present the tools cutting bits to the grinding wheel?
Perhaps there's not enough adjustment travel in that knob at the end of the shaft to allow enough clearance to index the tool?

[larryschweitzer]

Thank you. This was a very understandable video. Lincoln, NE, USA

[jimsvideos]

Thank you for everything here, the fixed focus in particular.

[weldmachine]

After watching this video about your D-Bit Grinder.
I understand Why I have Never used my Grinder as yet ??

Having time available to Sharpen Drill Bits can be difficult enough.
Finding time to Sharpen End Mills 🤔😕

My thoughts are 🤔
Sell my D-bit Grinder, and let someone else Sharpen my End Mills.

Would you be interested ?

I usually find, I put my blunt HSS End Mills in a box waiting to have time to Sharpen them, while old Carbide End Mills and Drills go into a Recycling box.

Good information, and thanks for reminding of Why I need to sell my Grinder 😁
Peter 👍

[avan]

Thanks for the video, going to have to add one of these grinders to my wish list

[thechipwelder]

Very good video! Thanks for putting in the effort. Great presentation, video quality and lighting. Mounted a diamond wheel to grandpas old bench grinder a couple of weeks ago . Will need to build something so I can grind endmill in different angles. Very good with videos like this when one can see how a real tool grinder works and also learn some about grinding. Subscribed and looking forward to follow your chanel. I am fully confident that your chanel will start to grow rapidly pretty soon. 🙂

[lifetrekfinancialgroup]

Very impressive!! Did you make the custom cutter for sharpening the sides of the flutes or was that item purchased somewhere? I don't think that is standard equipment when one buys a D-Bit grinder is it? Thanks for the lesson!