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ASAHI REGULAR SERIES DRILL BITS FOR COARSE GRAINED
SOFT - MEDIUM GRAINED HARD ROCKS
The regular series of Asahi "coloured" drill bits was designed for soft sedimentary
to hard competent igneous and volcanic rocks. They are widely used throughout Australia, New Zealand and South East Asia
for core drilling a wide variety of formations as shown in the IMPREGNATED
BIT SELECTION CHART
ASAHI TA SERIES DRILL BITS FOR HARD - SUPER HARD ROCKS
The TA series of drill bits was designed for hard to super-hard, medium to ultra fine
grained rocks. It is the result of nearly 2 years product development including almost
9 months field testing throughout Australia and South East Asia.
These bits have now been used in almost every major Australian mining and exploration centre under a variety of cutting conditions with varying penetration
rates. The combined increase in bit life and penetration rate achieved with TA series
bits has resulted in HIGHER RIG PRODUCTIVITY and lower costs per metre drilled.
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BIT SELECTION
GUIDE LINES (in pdf format) (38kb)
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