[meteorite-list] Working with Sikhote Aline

[m.mackintosh]

Dear List,

Could anyone tell me what one needs to:

1. Drill a small hole through a Sikhote Aline. ? I can only suppose it needs 
a special drill, but what ?

2. Weld onto a Sikhote Aline ? Here I guess it's a problem of temperature to 
create a good weld, and with what soldering material should it be welded ?

Thank you very much for any response.

Moray