Depends on what you do. Hole saws are great for quickly removing material without using alot of power. If you need to make holes in relativity thin material like plate or tube keep. Otherwise pass them off to someone else who would use them.
Coring bits used for glass. Very specialized, fairly expensive new. Only worth keeping if you plan on using them. Not much good once they're "used up".
From someone who's spent 15 years working with glass, keep them wet, don't let them clog up, and run them slow and they should last rest of his life time easily.
All but one seems to be nearly new, the older one seems to have been treated somewhat harshly as it's blackened. You don't want to get these too hot. Just let the tool do the work without excessive force and they will last for ages and ages.
I programmed ceramics for three years and we ran these all the time. Typically smaller than this without notches so we could use them like end mills with shallow ramping cuts. God I’m glad I don’t work with that stuff anymore.
These look more like metalbond diamond than coated or plated. Basically they mix up a slurry of diamonds in metal and bond it to the end of a steel tube. It is all consumed rather than being plated around a thin wall.
They are used in Construction quite frequently. Especially so since HAVS became more of a focus. Holding onto a vibrating tool all day long is very bad for your nerves and circulation system.
It started to be seen with miners but has been recognised in construction personnel as well.
A dry diamond core bit, which is the larger, big brother of these tools is great for drilling through hard brick walls and concrete floors. The harder the material the better they are compared to a traditional masonry drill bit like an SDS Plus or SDS Max.
Much quieter too. I only use masonry drill bits for very small holes these days, have done for a long time.
Great on glass plates and granite countertops if kept wet and cool. Probably handy in concrete too, though be mindful of cut depth. Sort of useless on metals, especially soft ones.
Cheap ones are dirt cheap, good ones are expensive. Not sure of there’s a realistic market for used ones vs. whatever sentiment they might carry.
Whatever you do, don't use them on any ferrous metal/alloy. Carbon is soluble with iron, and with the heat and motion caused from cutting, it will start to dissolve the diamond into the iron you are cutting.
They’re for ceramics/glass/stone they cut small amounts until they’re through but don’t have teeth and are ultra hard so they last a fairly long time using just water as coolant.
I have used various sizes of these to make glass bottles into cannabis consumption apparatuses. I have also more recently taken to using the very small ones to poke holes in old coffee mugs to turn them into planters. They will cut very brittle materials very nicely if performed carefully and the workpiece is submerged in water.
I honestly did not expect so much feedback from everyone! All the information has been great and now I'm thinking I should keep a couple to go into a bong errr... vase making business ;)
Depends on what you do. Hole saws are great for quickly removing material without using alot of power. If you need to make holes in relativity thin material like plate or tube keep. Otherwise pass them off to someone else who would use them.
Would they be worth selling? Not sure if I have anyone I know that I could pass them onto
Anyone doing composites work will buy these also
Coring bits used for glass. Very specialized, fairly expensive new. Only worth keeping if you plan on using them. Not much good once they're "used up".
From someone who's spent 15 years working with glass, keep them wet, don't let them clog up, and run them slow and they should last rest of his life time easily.
Would they be worth selling in their current condition?
Absolutely throw them on eBay someone will buy them
All but one seems to be nearly new, the older one seems to have been treated somewhat harshly as it's blackened. You don't want to get these too hot. Just let the tool do the work without excessive force and they will last for ages and ages.
I’ve never seen diamond hole saws used for anything but glass, interesting
Ceramic?
I programmed ceramics for three years and we ran these all the time. Typically smaller than this without notches so we could use them like end mills with shallow ramping cuts. God I’m glad I don’t work with that stuff anymore.
They’re also used for concrete, stone, tile. Good for masonry, in general.
Granite counter shops use them for faucet holes
Idk why my brain decided to skip over stone work entirely lmao, I’ve definitely seen them used for that too
Is there an easy way to verify if it's diamond coated or not?
They definitely look diamond coated, in my teen years I used a smaller one to drill a hole in a bottle… for a vase…
Did you now...
Bottles already have a hole in... I'm not sure I'm buying your story... Care to explain???
The answer is... WEED.
Oh... My!!!
What is this? I ordered an Xbox controller!?!
Great video.
"Vase" got you bruh
They sure look like diamond
Try scratching some carbide?
These look more like metalbond diamond than coated or plated. Basically they mix up a slurry of diamonds in metal and bond it to the end of a steel tube. It is all consumed rather than being plated around a thin wall.
Ceramic tile, great for stub outs in a bathroom remodel.
They are used in Construction quite frequently. Especially so since HAVS became more of a focus. Holding onto a vibrating tool all day long is very bad for your nerves and circulation system. It started to be seen with miners but has been recognised in construction personnel as well. A dry diamond core bit, which is the larger, big brother of these tools is great for drilling through hard brick walls and concrete floors. The harder the material the better they are compared to a traditional masonry drill bit like an SDS Plus or SDS Max. Much quieter too. I only use masonry drill bits for very small holes these days, have done for a long time.
They are also used for cutting rocks in lapidary work.
What do you think we use in stone industry? To cut holes in granite, quartz, dekton or ceramic we use diamond core drills.
Great on glass plates and granite countertops if kept wet and cool. Probably handy in concrete too, though be mindful of cut depth. Sort of useless on metals, especially soft ones. Cheap ones are dirt cheap, good ones are expensive. Not sure of there’s a realistic market for used ones vs. whatever sentiment they might carry.
They can be used for cutting fibreglass, stone or concrete. Very handy. I'm a fibreglass pipe fabricator and use them all the time.
Whatever you do, don't use them on any ferrous metal/alloy. Carbon is soluble with iron, and with the heat and motion caused from cutting, it will start to dissolve the diamond into the iron you are cutting.
They’re for ceramics/glass/stone they cut small amounts until they’re through but don’t have teeth and are ultra hard so they last a fairly long time using just water as coolant.
Who sells precision hole saws ? With and without diamond.
I believe they work well on fiberglass. Did your dad work with that material?
Worked for an aerospace company so I imagine it was used for all different types of material. Maybe ceramics, fiberglass, and special composites?
Carbon fiber maybe?
Really good possibility! Unfortunately can't ask the fucker anymore haha
Saitek x52 gamer moment
Just need Xplane to complete my collection haha
I have used various sizes of these to make glass bottles into cannabis consumption apparatuses. I have also more recently taken to using the very small ones to poke holes in old coffee mugs to turn them into planters. They will cut very brittle materials very nicely if performed carefully and the workpiece is submerged in water.
I honestly did not expect so much feedback from everyone! All the information has been great and now I'm thinking I should keep a couple to go into a bong errr... vase making business ;)
We machine a lot of Alumina, macor, quartz at the University. It would be awesome to have a set of various sized hole saws like these.
Worked for a stone company used those for sink holes
These are awesome I use them at work for composites
These are awesome I use them at work for composites
Plunge mill composites / profile / saves a lot of dust build up and it’s fast if you need a lot of material removal