• Applicable Industries:Building Material Shops
• Applicable Industries:Construction works 
• Applicable Industries:Energy & Mining
• Place of Origin:CN;HEB
• Type:Core Barrel
• Machine Type:Drilling Tool
• Certification:API
• Material:CARBIDE
• Processing Type:CASTING
• Use:Well Drilling
• Brand Name:EAST
• Product Name:8 1/2"Welded Single Roller Cone for Piling Drilling
• Size:8 1/2"=215.9 mm
• IADC:517,537,617,637
• Weight:15 Kgs
• Usage:Hole Drilling
• Color:Blue or Golden
• Working Process:Rotary Drilling
• MOQ:1 Piece
• Stock:Yes
• Standard:API Spec 7-1

8 1/2"Welded Single Roller Cone for Piling Drilling