i call that drill point a "split point". When machines are running, i working on a small jig, to grind a splitpoint on regular drills. Fits in a multifix toolholder for a regular lathe. just add a grinding disc to the spindle. split points are way better. For regular holes with no tolerance, you can peck a small point with slow feed, before drilling throug, instead using a spot-drill. (depending on drill size and material)
Indeed, split point is the name that my tool sharpener used to describe that design that allow big drill to avoid to use a pilot hole. I was mainly drilling counterbore as describe in the video, but quite large (36/54 mm). Instead of using 3 tools to do the job (pilot hole, 36 mm, 58 mm), I was able to drill those counterbores in on single pass. What a time saving!!!. Best of all, the basic standard drill was quite unexpansive. Just a few modifications from my local tool sharpener and I had the perfect tool for my application.
This is not a split point, a split point drill has no radius gash like this one have. the "Split Point" is the gashing type. a split point is going straight out towards the flute.
Could you talk a little bit about why you would make custom drills and where you would use them? I don't understand why this is warranted/economical vs approaching a vendor who already makes drills and end mills and why they might not have exactly what you need already.
Typically this kind of drill is used to do the through hole and counterbore for a SHCS. No tool changes, and if using a drill press or manual mill, it makes it so so much better and faster.
@@P8ntbaLLA56 Ok but a socket head cap screw is a standard part, so why isn't this tool just bought from a vendor? Why would you choose to buy and run 100,000+ dollars of machinery just to make a drill that should be, and maybe already is, very standard.
I am not advanced in tool grinding just the basics. Would you use diamond wheels on this machine and what other types of grinding wheels do you use and what are they made of? All I know (I am from the UK) is, I have used diamond wheels and green wheels for grinding carbide. Just curious about the advancements in grinding wheels is if any over the years. I am not a tool grinder by trade thanks.
These are Diamond wheels from Tyrolit. We used CBN for steel when we did the bone pin video. ruclips.net/video/GV9NM4DPB98/видео.html 11v9 D64 1A1 D54 1V1 D54
Dear @Scott Leoncini, I am having some chipping problems while grinding carbide drills. The chipping occurs at the top of the drill/steady-rest contact surface. I am using V-shape steady-rests instead of half-moons. Also, before grinding the drill itself I do blank preparation on another machine. The portion from the tip to the shank of the drill is tapered slightly. From your experience, why do you think this issue might be happening? Thanks a lot in advance!!
Would like to see programing lessons on these grinders I used to make ded-tru grinders but never used them only made them using manual mills and cnc mill.
Maybe? Carbide isn't very expensive when you're purchasing bar stock. Compare that to 1/2" solid drill price, it is probably cheaper (depending on brand).
Eye balls glued to this process and explanation.
Slick, you gotta shows us how that thing is making chips!
I’d spend all day making that tool and probably break it in 5 seconds.
that grinder is the bomb !
Nice to see you progress Scott
Thanks, Bro. Hope all is well.
Are you guys going to do academy lessons on tool grinding? Would be amazing.
yes please
Yes
How are these tools being used? In house or are you distributing your own tools now? Do you run a production of step drills, or just 1tool at a time?
I love machining!
i call that drill point a "split point". When machines are running, i working on a small jig, to grind a splitpoint on regular drills. Fits in a multifix toolholder for a regular lathe. just add a grinding disc to the spindle. split points are way better. For regular holes with no tolerance, you can peck a small point with slow feed, before drilling throug, instead using a spot-drill. (depending on drill size and material)
Indeed, split point is the name that my tool sharpener used to describe that design that allow big drill to avoid to use a pilot hole. I was mainly drilling counterbore as describe in the video, but quite large (36/54 mm). Instead of using 3 tools to do the job (pilot hole, 36 mm, 58 mm), I was able to drill those counterbores in on single pass. What a time saving!!!. Best of all, the basic standard drill was quite unexpansive. Just a few modifications from my local tool sharpener and I had the perfect tool for my application.
This is not a split point, a split point drill has no radius gash like this one have. the "Split Point" is the gashing type. a split point is going straight out towards the flute.
very good video and good machine
Scott HYPES me up! Nice work!
Can’t wait to see it cutting 😎
Could you talk a little bit about why you would make custom drills and where you would use them? I don't understand why this is warranted/economical vs approaching a vendor who already makes drills and end mills and why they might not have exactly what you need already.
Typically this kind of drill is used to do the through hole and counterbore for a SHCS. No tool changes, and if using a drill press or manual mill, it makes it so so much better and faster.
@@P8ntbaLLA56 Ok but a socket head cap screw is a standard part, so why isn't this tool just bought from a vendor? Why would you choose to buy and run 100,000+ dollars of machinery just to make a drill that should be, and maybe already is, very standard.
@@christopherbarron8730 if he has the machines there why would he purchase an expensive custom tool from someone else?
That's sick 👍👍
But i want to see it work 👀
Love it!! When do we get to make some holes?!
Soon...
Clearance...
Titan of CNC 👍
That’s so awesome!
Very informative
Thanks for sharing!
I am not advanced in tool grinding just the basics. Would you use diamond wheels on this machine and what other types of grinding wheels do you use and what are they made of? All I know (I am from the UK) is, I have used diamond wheels and green wheels for grinding carbide. Just curious about the advancements in grinding wheels is if any over the years. I am not a tool grinder by trade thanks.
These are Diamond wheels from Tyrolit. We used CBN for steel when we did the bone pin video. ruclips.net/video/GV9NM4DPB98/видео.html
11v9 D64
1A1 D54
1V1 D54
Dear @Scott Leoncini,
I am having some chipping problems while grinding carbide drills. The chipping occurs at the top of the drill/steady-rest contact surface. I am using V-shape steady-rests instead of half-moons. Also, before grinding the drill itself I do blank preparation on another machine. The portion from the tip to the shank of the drill is tapered slightly.
From your experience, why do you think this issue might be happening?
Thanks a lot in advance!!
Try changing the direction your spindle or approach style. Sounds like it is chattering on your steady.
If this is the tool that cut the thing that cuts, what is the tool that cut the thing that cut the thing that cuts?
Bro, they did not cut the material.
They performed grinding operation with a diamond wheel
@@atharavstudynaikstudy4409 You can cut something using abrasion...
@@johntheux9238 yes...
The chicken came before the egg, so I think the chicken ground down the diamond grinding wheel 😂
It all started with a stick and a rock...
When are we going to get to see the desk
Where's the video of that thing shooting out chips and chips and chips huh? Might need some fish to go with it next episode.
H E L I T R O N I C
I wanna see it working on a job
Great video! What kind of speed and feed are you using for the plunge grinding of the pilot diameter?
3200 sfm @ 3.0 IPM
will you be selling any of these custom bits on your website?
Epic
Great job! Does your software help you develop the cad file with all the facets, reliefs, and angles?
Would like to see programing lessons on these grinders I used to make ded-tru grinders but never used them only made them using manual mills and cnc mill.
What is step drill different from ordinary drill ???
It creates several steps with different diameters with one tool. A typical example would be a counterbored hole for a bolt.
@@MrEdvinsyse okay, thank you!! Sir 👍
2nd
that tool costs 10x the price making in house.... instead of purchasing
Maybe? Carbide isn't very expensive when you're purchasing bar stock. Compare that to 1/2" solid drill price, it is probably cheaper (depending on brand).
First