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KOKEN BORING MACHINE CO., LTD.

KOKEN BORING MACHINE CO., LTD.

Drilling Tools

Bit (Spike type)

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Drilling Tools
Bit (Spike type)
Inner bit
Outer bit

Stratum: Soft, Medium-hard rock
Conglomerate, Quartz trachyte, Hard sandstone etc.

Outer bit – spike type – Inner bit – spike type –
Name Bit x Rod Name Bit x rod
101D-P89-S 101 mm x P89 65D-P57-S 65 mm x P57
101D-P96-S 101 mm x P96
125D-P120-S 125 mm x P120 80D-P73-S 80 mm x P73
137D-P133-S 137 mm x P133 101D-P73-S 101 mm x P73
141D-P133-S 141 mm x P133 101D-P89-S 101 mm x P89
157D-P146-S 157 mm x P146 116D-P89-S 116 mm x P89
170D-P165-S 170 mm x P165 127D-P120-S 127 mm x P120
225D-P216-S 225 mm x P216 175D-P165-S 175 mm x P165
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