Armeg Sheet Steel Hole Saws

[remer1957]

On the subject of fixings (hope I'm not off topic) I use fixings in concrete that just require a pilot hole, then are put in by the Impact Wrench, though I can't remember what they're called. They are quicker than the usual wedge anchors, though more costly, and don't require the carrying of any setting tool.

 

[shanky887614]

On the subject of fixings (hope I'm not off topic) I use fixings in concrete that just require a pilot hole, then are put in by the Impact Wrench, though I can't remember what they're called. They are quicker than the usual wedge anchors, though more costly, and don't require the carrying of any setting tool.

these?

 

[remer1957]

No, These.

 

[Darkwood]

Thunderbolts them would be

I'd be very cautious of using any kind of impact equipment to fit these, the key part of its strength is 1 spiral thread and it creates its own groove, any damage to this cut groove can seriously impair the fixing strength of the bolt.

 

[edexlab]

Another vote for punches I carry a set from 16 to 50 mm cost me £60 had them for 7 years so I would argue they are cheaper than buying holesaws,
however they're only suitable for thin metal !
Re holesaws I use starrett with a quick change arbor I got from cef a few years ago.

 

[edexlab]

Also Imo impact drivers have their place , but I find people use them on threads unsuitable for this method and if it's something which might need to be undone can be a problem .

 

[edexlab]

The quick release arbor I use is an older version of this
"Morse fast adapt QR"
it has small attachments you fit on the holesaws and you just twist the base of the arbor to release take of one size to swap with another, takes literally a couple of seconds!

Also have attachments to allow two holesaws to be fitted to allow opening up of holes drilled ie 20 to 25 mm

Excellent bit of kit definitely recommend! had this set for 5 years, no issues and got me out of trouble once or twice