PDC Pillar drill bits
Minimum Order: 0
Quality/Safety Certification: 0.00
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.