BTA Drill

BTA deep hole drilling：

The cutting fluid is feed from the gap between the drill pipe and the hole of the wall.

Depending on he pressure of cutting fluid, the scraps are exclued from the inner hole of the drill pipe.

BTA deep hole drill is suitable for the deep hole, whose drilling diameter is more than 6 mm and the ratio of the hole depth and hole daimeter is less than 100, its production efficiency is three times higher than gun drill.