Brief Introduction on DTH Bit

We have been very busy this week. We have sent out a lot of drill bits of different sizes and types. So what I'm going to share with you today is the drill bit from WORLDRILL.

As we all know, it is our drill bit that directly hits the rock, and its quality directly affects our efficiency.

Today let us get to know some knowledge about the dth bits.

一、Bit face shape

1、Flat Face

Applications : Hard and abrasive formations, all round.

Typical formations:  Granite, hard limestone, basalt.

2、Convex

Applications:  Soft to medium hard rock, high penetration rate.

Typical formations : Limestone, hard limestone, shale, granite, basalt.

3、Concave（1）

Applications: Medium hard to hard formations, less abrasive, fractured formations, excellent control over hole deviation.

Typical formations : Granite, basalt.

4、Concave（2） 

Applications : Special design with ballistic front buttons, medium hard to hard formations, fractured formations.

Typical formations :Granite, basalt.

二、Carbide button shape

1、Round Button

Round Buttons are usually used as gauge buttons of DTH Bits, suitable for very abrasive and very hard formations.

2、Parabolic Button

Parabolic Button are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formation.

3、Ballistic Button

Ballistic Button are usually used as front buttons of DTH Bits,suitable for medium abrasive and medium hard formations.They can also be used as gauge buttons if the rock is soft.

4、Sharp Button

Sharp Button are usually used as front buttons of DTH bits for soft rock with high drilling speed and low rate of tooth breakage.

5、Flat Button

Flat Button are usually used as protection buttons to reduce wear on rubbing surfaces of DTH Bits.

Hopefully, these tips will help you find the right product for you

Here are some pictures of the WORLDRILL's products

216MM -- 8inch DTH hammer bit