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What is button bits insert types
Oct 18, 2018

What is thread rock drill Button bits insert types?


Matching the insert to the job requirements is essential in achieving the desired results. Each of the following buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels.

In general, the larger the number of gauge buttons, the better overall performance, especially in hard rock.


Here are the detailes to show you rock drill button bits insert types.

Button typeApplications
Spherical Button

Universal button

Wearing resistance good

Best suited to hard ground

27,000-48,000 PSI (180 to 320 Mpa)

Abrasive to very abrasive

Hemispherical Button

Universal button

Wearing resistance good

Best suited to hard ground

25,000-45,000 PSI (170 to 300 Mpa)

Abrasive to very abrasive

Parabolic Button

Universal button

Fast penetration

Best suited to medium to hard ground

15,000-25,000 PSI (100 to 170 Mpa)

Mildly abrasive ground

Conical Button

Fast penetration

Best suited for smaller diameter bits

Suited for all non-abrasive ground types

Ballistic Button

Fast penetration

Best suited to soft rock

10,000-20,000 PSI (70 to 140 Mpa)

Non abrasive ground

button bits insert type


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