Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Drill bit
Coal drill bit to fit into end of rotary drill rod used to drill shot holes in coal only. Painted yellow.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Coal drill bit to fit into end of rotary drill rod used to drill shot holes in coal only. Painted yellow.