Down in a Whole Tungsten Carbide Drill Bits

=== Base Info ===

• Certification：CE, RoHS, ISO 9001:2000, ISO 9001:2008
• Standard：AISI, ASME, BS, ANSI, JIS, GB
• Surface Treatment：Polishing
• Manufacturing Process：Forging
• Material：Alloy Steel
• Material of Drill Bits：42CrMo+Tungsten Carbide
• Any Other Size：100mm, 110mm, 120mm, 130mm, 140mm, 150mm Ect
• Number of Air Holes：2 or 3
• Color of Drill Bit：Golden, Yellow, Red, Blue, Green
• Transport Package：Wooden Case
• Specification：90mm,100mm,110mm,120mm,130mm,140mm,150mm, etc
• Origin：China
• HS Code：8207199000

=== Description ===