الوصف

HARGRAND impregnated diamond bits have the widest range of application.

They are the most commonly useful bits from medium to super hard formations

in the mineral exploration industry. the Hardness and abrasive of the rock formation

are the key factors to determine the diamond specifications, concentration and matrix

hardness.

Toothed bits can get higher drilling efficiency when it is drilling at dense or abrasive

stratum with lower drilling speed and pressure. It was especially effective at coal formation,

using toothed bits can get better water flowing and drilling footage effect. Nowadays,

Impregnated diamond bits have been widely used in wire-line drilling series

Diamond bits Crown Shape and Applications:

Flat

applicable to drilling different levels of hardness or abrasive formation,

generally for single and double tube drill bits.

Semi-round

good distribution of the diamond at bit face, adapt to a small broken or loose formation

applicable to drilling medium-hard and hard formation.

ladder

applicable to drilling medium-hard,broken or interbedded formations,

hole deviation can be prevented

Serrated

applicable to drilling hard and dense formation, Enhancing drilling rate

Ladder serrated

applicable to drilling medium-hard, have good stability during the drilling.

Gear type

applicable to harder or dense formations, Enhancing drilling rate.

Bottom jetting

applicable to drilling sedimentary or metamorphic formations which containing more power, high coring recovery rate and avoid excessive washout of core .