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Gordon W	20/06/2016 10:01:22
2011 forum posts	Just a quick update--I said I bought 8% cobalt drills- they are 5% cobalt. Used them this morning and checked, work well. I'm fixing a TV dish to a steel box sect. and 1/2" thick RSA. Working off a ladder with a stand-off, ladder tied at the top. No problems so far. I did wonder why I sold my work platform, this was about 6' x 3' x 10' high. Ideal and safer than a ladder. They can be hired cheaply.
Neil Wyatt	20/06/2016 10:15:42
19226 forum posts 749 photos 86 articles	> I have to drill hundreds of 6 and 8mm Must be a bloomin' big TV dish ,-) Neil
Martin W	20/06/2016 10:23:21
940 forum posts 30 photos	Neil Clogs drilling 100's of holes Gordon fixing satellite dish Martin
Ady1	20/06/2016 10:37:43
6137 forum posts 893 photos	Cobalt HSS is great stuff, it fills that void between HSS and carbide very nicely
Ian S C	20/06/2016 14:58:20
7468 forum posts 230 photos	If you were doing the job here you would probably need a scaffold, put up at great expense by a special crew. I sometimes find that on break through things go better if I stop, reverse the drill, and instead of pulling the bit into the hole and jambing, it beaks through smoothly, maybe I'm doing it wrong, but it works for me, specially with a battery drill with not quite enough power. Ian S C Edited By Ian S C on 20/06/2016 15:01:34
Hopper	21/06/2016 13:25:15
7881 forum posts 397 photos	So, how's the hole drilling going? How many hundred left to go? What is the project btw? A commercial job, or rebuilding a 5" gauge railway?

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