society > occupation and work > equipment > piercing or boring tools > [noun] > boring tool > other boring tools (4)
An iron wedge used to bore through stones.
Mining. A tool used to round off a hole in boring. Now rare.
†(a) Horse Riding a type of snaffle with three joints, the middle joint being flat and the two side joints (attaching to the cheekpieces) rounded (obs…
a tool for boring or drilling (see quot. 1875).