Universal Drilling Technique LLC
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Tungsten carbide insert bit
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Tungsten carbide insert bit
Steel tooth bit
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PDC Bits
Drill bits designation
Product line designation
Size (mm)
Size (inch)
IADC Code
Connecting thread
According to GOST
According to API
215.9 MC6166 U03
MC6166
215.9
8 1/2
S323
З-117
4 1/2 REG
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