Surface Set Diamond Core Bit
- Description
- Inquiry
Mark & model:聽Surface set diamond core bit is suitable for the soft to hard strata which is featured as fast speed of drilling and long service time.
Product profile: Surface Set Diamond Core Bit
- The surface set diamond bit is produced from a single layer of natural diamond setting on the surface of bit crown with hard matrix.
- Surface set diamond bit is mainly recommended for drilling soft to hard formations. Generally speaking, surface set diamond bit can provide satisfying penetration rate.
- To choose a right surface set for the formations drilled, we need at least consider the following aspects: diamond size, diamond grade, profile design.Principle of choosing diamond size–the harder the rocks, the smaller the diamond size should be.
Diamond聽Size |
Formation聽Drilled |
10/20聽SPC* |
Soft聽formation |
20/30聽SPC |
soft聽to聽medium聽formation |
30/40聽SPC |
medium聽formation |
40/60聽SPC |
Medium聽to聽hard聽formation |
<聽60/80聽SPC |
Very聽hard聽formation |
*SPC聽is聽short聽for聽Stone聽per聽Carat
**40/60聽is聽Forsun聽standard聽diamond聽size聽for聽natural聽diamond聽core聽bit ***Other聽sizes聽are聽available聽as聽per聽request |
Rule聽of聽selecting聽diamond聽grade–the聽harder聽the聽rocks,聽the聽better聽the聽diamond聽grade聽should聽be.
Diamond聽Grade |
Formation聽Drilled |
A聽Grade |
Soft聽formation |
AA聽grade |
Soft聽to聽medium聽formation |
AAA聽grade |
Hard聽to聽very聽hard聽formation |
*AA聽grade聽is聽Forsun聽standar聽diamond聽grade聽used聽in聽natural聽diamond聽core聽bit |