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Subject: Re: Tool holders


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Message Thread:

Tool holders

Steve Member

I'm new to CNC, the router is coming in a month or so. I need help with this toolholder subject ISO 30. Are all tool holders created equal? If I bought a cheaper one for just a drill bit or something could it damage the spindle or cause problems? What brands should I be looking at. Any guidance would be appreciated.

5/2/19       #2: Tool holders ...

All 30 Taper tool holder are not the same.
If nothing else the top pull studs come in a dozen different flavors. Collets come in different styles too.
Maybe get a couple from the machine manufacturer then look around for compatible ones when you have something in hand to compare with.
As far as drilling we drill with a tool holder and a collet sized to the common drill bits we use, (adjust you feed and spindle to fit).
We also have an Albricht keyless 30 taper drill chuck for oddball sizes of drills we sometime used - letters, number drills in weird sizes.
As far a "cheaper", buyer beware, the thing that spins around at 15K rpm should be balanced and not fly apart.

5/2/19       #3: Tool holders ...
Dylan Bayliss  Member


feel free to contact us with any questions,
we offer several brands of holders for multiple brands of CNC.
we also offer starter tooling packages for new cnc installs.

5/3/19       #4: Tool holders ...
Mark T


Everything above (Dylan is a great source for tooling and assistance btw) + in order balance these tool holders, holes are drilled in the body of the tool holder to remove weight. Be careful of where these holes are drilled. If in the flange groove of the tool holder that many manufacturers use to couple to the tool changer, depending on the coupling type it can cause issues. Spot on information on the retention knobs as well, they are very manufacturer specific.

5/3/19       #5: Tool holders ...
Mark B Member

We have run several "off brand" holders. Our spindle is an HSD and as long as your ISO30 spindle has the HSD stud you should be fine. Mind you a BT30 holder will accept the same ER32 collets but will have a different outer diameter if your running ATC. Your forks will not work. That said, If you have some operations for holders that will never see the ATC you can often times pick up high quality BT30 holders for pennies (or less) on the dollar.

No one can argue that skimping on your tool holders can be a risky endeavour but as with everyone, and Im sure it your case, when your wanting to have a few other holders in the rack and you see imports balanced at 24K and up, and then are looking at laying down $175 for basically the same holder, it gets difficult.

We have a bunch of BT30 holders in the rack with HSD studs that we use for special operations. We have some import ISO 30 holders in the ATC that have never given us a lick of trouble. I wish they were all from the US high dollar sources but people gotta do what they gotta do.

5/5/19       #6: Tool holders ...
Mark T


Reference the attached picture, it is of a fixed elevating tool holder within a changer but some carousel models use the same spring loaded clip design to retain the tool in the fork. If the balance holes are drilled within the groove, you run the risk of damaging the pin and literally breaking the tool changer. This typically will not be the issue with newer model tool changers that use plastic forks that hold the tool holder primarily with compression.

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5/5/19       #7: Tool holders ...
DannyB Member

FWIW: A lot of the USA companies are OEM'ing their ISO toolholders (at least) from SYIC anyway.

10/15/19       #8: Tool holders ...
Salce Smith  Member


Hi Steve, not all ISO 30 tool holders are the same. The ISO30 cone part are the same, 7:24, but the pull stud not the same. Different spindle make use different tool grippers, so the pull stud should be matched. Normally there are 3 main ISO30 tool holder pull studs, from 3 spindle brands: Italy HSD, Colombo, Elte. Different CNC router manufacturer choose different spindle, so when buy a ISO30 tool holder, we have to check the pull stud should be matched.

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