A down-the hole drill, usually called DTH by most professionals, is basically a mini jack hammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small flakes and dust and is blown clear by the air exhaust from the DTH hammer.
DTH drilling machine
The DTH drilling machine can not only drill in the horizontal direction but also drill in the vertical direction.
Drilling in the horizontal direction
Drilling in the vertical direction
Drilling in the slope direction
Application:
1. Drill hole for blast holes in mini project;
2. Drill hole for installing water pipe and electric cable;
3. Drill hole for bolt holes etc.
If you want to know more information on DTH drilling, please click on the following website for work video: https://youtu.be/2VX3vQj2vVQ