Taper Ball Mills

Taper Ball Mills

Postby Leo » Thu Feb 09, 2017 8:02 pm

First - I am a believer in using quality cutters.

BUT

I see Chinese Tapered ball nose with TiAln coating for as low as $8.00 - free shipping.

Compared to the $35 - $45 cutters - that is 4-5 chinese cutters per every ONE of the "quality" cutters.
They need to be at least looked at!

Has anyone tried them.
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Re: Taper Ball Mills

Postby dwilli9013 » Thu Feb 09, 2017 8:05 pm

I have not as yet but it certainly sounds enticing.
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Re: Taper Ball Mills

Postby Leo » Thu Feb 09, 2017 8:31 pm

Well I am going to try them,

I just ordered a set of 5 1mm ball nose end mills with 6mm shank. Should be able to use a 1/4 ER25 collet.

1mm ball is .0395.

Just over 3/4 cutt length and just under 2" long.

Free shipping - cost per cutter $9.40

If they perform anywhere near reasonable - it's worth it.
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Re: Taper Ball Mills

Postby dwilli9013 » Thu Feb 09, 2017 8:35 pm

Be sure and let us know Leo.
Heck I've spent more than that on a couple of drinks and a good steak. :lol: :lol: :lol:
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Re: Taper Ball Mills

Postby Rcnewcomb » Thu Feb 09, 2017 8:41 pm

This eBay seller has a set of 4 for US $18.88 with free shipping. I'll order them and let you know what I discover.
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Re: Taper Ball Mills

Postby Leo » Thu Feb 09, 2017 8:59 pm

Same seller

I will be happy for us to compare opinions.
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Re: Taper Ball Mills

Postby dah79 » Thu Feb 09, 2017 10:12 pm

Keep us all posted. Thanks
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Re: Taper Ball Mills

Postby Mogal » Thu Feb 09, 2017 10:56 pm

LOL, I ordered some a couple days ago too.
Should be here next week.
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Re: Taper Ball Mills

Postby ChrisInEstes » Fri Feb 10, 2017 12:06 am

While we're ordering el-cheapo Chinese bits... I hear lots of people saying how great some are, and how cheap the are... So, I'll try 'em, too.

I ordered 2 sets of what Randall ordered. I figure if a particular size breaks, I'll have an extra of it..

I also have these on the way. http://www.ebay.com/itm/5-x-Durable-Car ... SwARZXkvUD
5x-2mm.JPG


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Re: Taper Ball Mills

Postby martin54 » Fri Feb 10, 2017 2:38 am

I bought some a couple of years ago (maybe more) as the prices seemed to good to be true, ordered from a couple of different sellers, one lot never turned up but I did eventually get refunded, the others I ordered were a pack of ball nose bits in sizes from 1 - 4mm which weren't anywhere close to the sizes listed when measured & a set of 5 6mm straight shank endmills which seemed to work OK but didn't seem to last very long before the edges were blunt :lol:
Still undecided about if it was worth it, the 5 bits cost about what I was paying for 2 bits from a UK company.
I don't doubt that there are some bargains to be had if you can find the right sellers :lol: :lol:
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Re: Taper Ball Mills

Postby martin54 » Fri Feb 10, 2017 2:44 am

Chris, you should have read the small print at the bottom of the page, you don't get a battery with those endmills :lol: :lol: :lol: :lol:
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Re: Taper Ball Mills

Postby Xxray » Fri Feb 10, 2017 5:19 am

I have tried similar if not the same, quality was poor, one would not even fit in the collet. Checked and the .25 shank was actually .22, close but no cigar.
Emailed the seller and got the "oh sooo sorry, pleeze send back for your refund" - Of course, shipping it back to china is more than the bit is worth, and I think these sellers count on that fact.

Can't comment on longevity as I'll never use them enough to find out [the one that wouldn't stay in the collet I flat out threw away] I would think they would wear at least 10x quicker than a quality bit.
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Re: Taper Ball Mills

Postby scottp55 » Fri Feb 10, 2017 1:58 pm

Please post results using them with something like Sugar Maple?
Two years ago I ordered 10 1/8" straight ballnoses for the CEL, and got them in 6 weeks....Cut was so horrible,the only way I saved the piece was cutting .015" deeper with my Onsrud 1/8" and still needed more sanding than normal.....still sitting unused in the back of my drawer waiting for me to experiment in dubious stone carving.
Looking forward to comparison cuts.
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Re: Taper Ball Mills

Postby ChrisInEstes » Fri Feb 10, 2017 8:42 pm

martin54 wrote:Chris, you should have read the small print at the bottom of the page, you don't get a battery with those endmills :lol: :lol: :lol: :lol:


What!? No battery!? I knew it was probably too good to be true. Now I'll have to spin them by hand...

I'll be surprised if they are worth more than their cheap price. With at least 3 of us getting them, we should have good test info.

The set of 5 non-tapered/battery not included bits shows as shipped already, with a 2 to 4 week delivery window.

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Re: Taper Ball Mills

Postby martin54 » Fri Feb 10, 2017 9:30 pm

I think this is probably about finding the right sellers than anything else, looked at some of the bits again & it is hard to believe some of what is written, one I noticed said that the bits were hand sharpened & sizes were give or take 1mm which is a huge variance lol
Guessing that a lot of the sellers buy from the same manufacturer as well going by some of the pictures, most of the sellers I looked at didn't seem to sell a wide range of bits so probably just buying what they think will sell well.

The first lot I ordered were shipped fairly quickly, waited patiently for weeks & nothing arrived, when I contacted the seller I was asked to wait a little longer which I then did, next time I contacted them they said they would re ship, waited once again for weeks & again nothing arrived. There then followed a series of messages from the seller offering me a 50% refund, their argument was that they had lost a lot with shipping twice. I ended up taking it to ebay/paypal who gave me a full refund. Got me thinking though, did they actually ever send anything at all or where they just hoping I would pay them 50% of the cost for nothing :lol:

The other ones I ordered from other sellers arrived quite quickly considering the estimated time for delivery, I should have been a little bit more careful with my testing so I had a true comparison to the other bits that I bought from a UK tool supplier :lol: :lol:

Don't think I would seriously look at buying any of these bits if I ran a production shop where time is more important from a financial point of view but as I am more of a hobby type person despite being registered as a business time is not quite so important to me :lol: :lol:
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