LEANOMS


Leading manufacture of rock drilling tools

Tel:+8613400728319

E-mail:info@leanoms.net


DTH Bits Face Shape Selection

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 Drop Centre
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
 Concave Face
The all-round application bit face specifically for medium hard and homogeneous rock formations. Good hole deviations control and good flushing capacity.
 Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistant to steel wash and may reduce the load and wear on the gauge button. Poor deviation control.
 Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
 Flat Face
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 and resistance to steel wash.