Greenlee 868 Screw Anchor Expander For Caulking Anchor Size 1/4" - 20

Pound for pound, this may be the most expensive tool I own. That being said, I think this is a must-have tool when installing hurricane shutters using sidewalk bolts and anchors. If you can tolerate the idea of spending 10 times more for a tool that actually works, then this is for you. The tubes shaped tools you buy at the big box store are junk and you can end up with crooked mounts that end up cross threading when you try to install the bolt. After drilling out and replacing a couple of these botched installs, or having to resort to using a tap to rethread a couple of ruined anchors, you will appreciate the value in having the proper tool instead. This tool will allow mounting even if the hole has blown through and has no back side. Amuse and impress your friends at parties when you ask them what this thing is used for. No instructions provided. Hammer and twist as you go keeping the tool snug against the work surface. You are welcome!

If you mount heavy stuff on hollow block walls this is a must have tool. This thing only does one thing but it does that one thing very very well. It's a little bit costly but when you need it you will understand why you spent the money. I own 3 different sizes of this tool

So for anyone who has ever had to try and set a lead anchor in a block, brick, concrete, etc. and you do not have this tool you have probably decided lead anchors are no good. I am here to tell you, that you are wrong. Lead anchors are ansolutely awesome, if you have this tool. This allows you to set the anchor in whatever material you are in without the fear of it pulling out. It is uper easy to use. The are made of all metal parts, so they are very tough. They are expensive. However, if you watch them on Amazon they will have them on sale from time to time. When they do buy three of them. Lead anchors are very cheap compared to a wedge, sleeve, etc. so this tool will pay for itself. Buy this tool you will not regret it.

Muy bueno excelente para el tipo de trabajo

as expected