The drill also had a mechanism for turning the drill bit around its axis between strokes and for advancing the drill as the hole deepened.Fowle was using compressed air to drive his drill, making it the first true pneumatic drill.
The drill also had a mechanism for and for. The drill also was advancing the drill. The hole deepened.Fowle was using compressed air. This was to drive his drill. The hole deepened.Fowle was making it the first true pneumatic drill. The drill also was turning the drill bit around its axis between strokes and for. The drill also was advancing the drill. The hole deepened.Fowle was using compressed air. This was to drive his drill. The hole deepened.Fowle was making it the first true pneumatic drill.