Features:

1. Surface set bit is produced from a single layer of natural diamond setting on the surface of bit crown with hard matrix.

2. Face Profiles of surface set core bit: Semi-round & Stepped profile.

3. Size Available: 46mm, 56mm, 66mm,76mm, 86mm, 101mm, 116mm, 131mm, 146mm, etc.

4. Applications: for geological and mining drilling.

To choose a right surface set for the formations drilled, we need at least consider the following aspects: diamond size, diamond grade, profile design.

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Principle of choosing diamond size: the harder the rocks, the smaller the diamond size should be.