The bit has a fast cuttingand drilling , with a long service life , good powder exhaust and highefficiency of coring . It is applicable for medium hard rock with a class Of 3-8. And it is applicable for formation e.g. sandstone ,limestone ,schist andhematite etc

PDC bits are much more effective in rockdrilling and rock cutting.

PDC bits rangingfrom 48mm to 171mm in diameter

Use of PDC core drill bits :

Drill soft to hard rock, widely used in all kinds of drillings for prospecting, water andelectricity building and construction industry of road, railway, bridge andbuilding taking out core to examine stake,etc.

Structure of PDC core drill bits :

They aremanufactured with very small, high quality synthetic diamonds mixed evenlythrough a metal matrix. Longo core bits are manufactured to give optimumpenetration rates and bit life, which is required to keep the cost of diamonddrilling to a minimum.