Cup bur question

Hi guys :~)

I need a new set of cup burs and I want to try a different style. Can anyone give me feedback
regarding these two designs?

Many thanks!

I would pick the Busch bur, why? You can actually ‘see’ what is taking
place during the removal of the metal on the tip of the claw/prong!!! I
like this version better, as the ‘teeth’ are right against the edge of the
bur. Unfortunately, the next pattern/design the deep-cutting teeth are more
“aggressive” in the cutting process. Plus, the teeth are not truly against
the edge of the bur. Much “modification” needs to take place & not cost
effective!!! Hope this review is helpful.

Gerry Lewy

Hello Gerry,

Thank you. I will be using these burs to use primarily on the ends of wires.

A small barrett file. Skip the cup burrs.

With Barrett files, your ‘claw tips’ may not be ‘finished’ perfectly
round…just my opinion!!!

Gerry Lewy

I go thru lots of cup burs and prefer Busch Fast Cut.

Hi Jeffery

I have only been using concave twin cut burs since they came out. They cut faster, don’t load with metal and stay sharp longer.


hi Jeffrey,

I just got my hands on the book “Magnificent Tiffany Silver”…and was thinking of you…!..then I got to wondering…on tea pot handles…are the ivory discs to keep the handle from getting hot…?


I agree 100%, as would my wife, aka my first earwire “victim.” :head_bandage: It’s so much easier to make fast, consistent, smooth ends with a cup bur. That being said, though my breadth of expertise is limited, I’m not unhappy with the regular LYNX burs from Rio: LYNX Cup Bur, Set of 12 - RioGrande, so perhaps their C4s are reliable as well.

Good Morning @StullerInc also carries a BUSCH TWINCUT CUP BUR KIT -18-5005

Andy “The Tool Guy” Kroungold
Director Tool Sales & Stuller Bench
Stuller Inc.
P 1-800-877-7777 ext 4191 or 4194

1 Like

Hi all,
Just an F.Y.I for anyone in the U.K.
These are on sale on the cooksons website, available in various sizes. It works out around half price when buying 6 or more.
Also free postage code till end of february: FREEDEL17
Also 20% off order excluding precious metal and sale items till end of January: CHRISTMAS20

I just ordered this set. Thanks!


Andy “The Tool Guy” Kroungold
Director Tool Sales & Stuller Bench
Stuller Inc.
P 1-800-877-7777 ext 4191 or 4194