Rock drilling tools factory Litong manufactures a comprehensive range of DTH drill bits with various shanks type for a wide range of hole sizes, which have been designed to match all conceivable applications for water well industries, mining and construction.

Flat Face

An universal design, especially for hard and abrasive rock formation. So typically, flat face with hemispherical buttons design is the most popular choice.This kind of face shape is suitable for hard to very hard and abrasive rock formations in application with high air pressure. Good penetration rates and resistance to steel wash.

Convex Face

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