water well hammer drilling bits Down The Hole Hammer DTH Bits air hammer drill bits

Super Down The Hole Hammer DTH Drill Bits for water well drilling

Bit Face Shape Selection:

1. Drop Center Bit

For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

2. Concave Face

The all-around application bit face specifically for medium hard and homogeneous rock formations.

Good hole deviation control and good flushing capacity.

3. Convex Face

For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.

4. Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

6 inch shank Down The Hole Bits:

DTH hammer bits/DTH биты молоток/DTH martilyo bits/DTH บิตค้อน/DTH martillo de bits