Persian drill
From Wikipedia, the free encyclopedia
Persian drill, a drill which is turned by pushing a nut back and forth along a spirally grooved drill holder.
[edit] Source
Webster's Revised Unabridged Dictionary (1913).[1]
Persian drill, a drill which is turned by pushing a nut back and forth along a spirally grooved drill holder.
Webster's Revised Unabridged Dictionary (1913).[1]