Coal mining, rock core drilling, mineral exploration
natural diamond, coarse diamond
1000 Piece/Pieces per Week
Packaging & Delivery
carton boxes or wooden cases.
Within 5 working days after payment.
PQ HQ NQ BQ Surface Set Diamond Core Drilling Bits
This type of bit is primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bit. It is also recommended for use in drilling harder formations where the available rotary speeds and bit loads are insufficient to use impregnated diamond bits due to drilling equipment limitations.
In most cases, surface set diamond bits will provide higher rates of penetration than in softer formations due largely to the greater degree of exposure of the individual diamond crystals.
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.
Rule of selecting diamond grade--the harder the rocks, the better the diamond grade should be.
3. Transportation: By DHL/UPS/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technical support for all issues. Besides we accept goods return or replace for quality problem.
Q: How does your company control the quality?
A: Quality always comes first. In order to guarantee quality for our products, Forsun always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.