When all you have is a hammer, everything looks like a nail.
This is Not Your Father’s Rubber Mallet
Here is the “hydraulic setting device” one contractor was using to “set” the curtain wall units. They were hitting the sill rail so hard they bent the rail and cracked the paint.
What were they thinking? The LA police use a more delicate tool to beat down the doors of crack houses. Medieval armies used logs with less mass to bust into castles. If the Big Bad Wolf had had one of these, that Little Pig’s brick house would have been rubble. I’ve seen more graceful devices used to drive building piles. Things like this are illegal in 23 countries.
And the craftsmanship… Is that Teak wood?