The instrument used is a soft hammer
with round ends which rolls the gold as though it is pastry.
The experiments of Ohnuma & Bergman (1982) clearly indicate that reliance on a single indicator and/or the absence of certain features is misleading in identifying hard and/or soft hammer
Wastes without EPA treatment standards are called soft hammer
It may be necessary to tap the back of the barrel extension with a soft hammer
to move it forward.
First principles, a brief history of knapping, raw materials, techniques - hard hammer, soft hammer
, pressure flaking, etc.
I am not a fan of using deadblow or soft hammers
here or anywhere that you need to "feel" how tight the fit is and to gauge how much you are actually moving (or binding) the cavity or piece of tooling.