Sigma or rubi?

[J Sid]

It was good, but too heavy for me. haha
I find it more comfortable, drill and cutters sigma
Cutter Heads - sigma

Like not working for me !
Do you cut hold wet or dry ?

 

[Italy]

with drill wet.
just a little water in art. 87d2

 

[J Sid]

Do most of mine dry now, attached to grinder, much faster 🙂

 

[Italy]

a long time ago too.
tired of eating dust ...
water last longer cutter heads, just use speed specified ...
fast small holes.
slow large holes.

ahahhaha julian