Cup Burs Fig 77B Concave Cutter Fraises Assortment 009-029 Set Fox Germany (E 4)

These work great for rounding the ends on copper and sterling wire. I use any handy wax, usually a cheap tea light, to lubricate. They aren't marked and several of the sizes are difficult to tell apart so mark them before you mix them up or be careful to put one away before getting out another.

These are high quality bits.

Thank tou

I used a dremel tool with this cutter and rounded the tip of a 1.5mm diameter Platinum wire. I am satisfied with the result.

I like them!

Made all my sharp little prongs soft and sphererical

Absolute must for fine jewelry making.

Very useful tools and easy to use

Highly precise Concave Cutters.