specifications as follow:

1.pure tungsten grinder electrode
2.diamter 1.5*length 7mm, diamter 1.5*length 8mm,  diamter 1.5*length 9mm, diamter 2.0*length 15mm,

we can products the size according your request.

3.usage: for hard material filar guide,electronic component and lamp using electrodes ect.

some package photos for your reference as follow: