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PDC Pillar drill bits
PDC Pillar drill bits

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Size:60-133mm
Type:Pillar drill bit
Suitable for drilling in rock formation with f equal to 10

Type:Pillar model

Size:φ60-φ133(mm)

Application: This group of products is used to penetration the degassing hole, drain hole, and grouting hole of coal mine. Applicable rock formation: f≤10

 Characteristics: Drilling efficiency is slightly lower than concave bits, but the abrasion performance is stronger.

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