Drillsphere 28INCH DTH HAMMER
Drillsphere manufactures wide range and most efficient Down-the-Hole (DTH) hammers and bits for the mining blasting, water well especially
deep well drilling, foundation construction etc. Our products trust by drilling contractor because of the advantages

1.System introduction
To drill through overburden and into bedrock,the large diameter DTH hammer used on dual-power drill rig, is a better way to save cost than using
casing drilling tools. It is applied for drilling through cave, gravel, boulder, weathered bedrock, with single hole depth over 25m. This method is
widely used for embedded prefabrication piles,long spiral piles and large diameter end bearing piles.

2.Features
·Widely applied for complex rock formations like caves, pebbles, fissures etc.
·Drilling through hard rocks with high rate of penetration.
.Low air consumption.

3.Advantages
.Simple structure without inner cylinder ensure high reliability caves, pebbles, fissures etc. and easy maintenance.
·Customized DTH bit steel,reduces rate of body broken and cracking failure.
·Fixed position for the stabilizer for easy modification.