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Water Well Drilling Bit / HDD Pilot Bit 311.2mm FA517G API-7-1 Standard

Categories Tricone Rock Bit
Brand Name: FLRT
Model Number: 12 1/4 FA517G
Certification: API-7-1, ISO 9001:2008
Place of Origin: China
MOQ: 20pcs
Supply Ability: 300pcs per quarter
Delivery Time: 5~45 workdays
Packaging Details: plywood box / iron box
Bearing Type: Sealed Friction Bearing
Cutting Material: TCI
Standard: API-7-1, ISO 9001:2008
Series: FA
IADC: 517
Supplementary Features: G : Reinforced Gauge Protection
Application 1: HDD Drilling ( Pilot Bit )
Application 2: Shallow Oil Well Drilling
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Water Well Drilling Bit / HDD Pilot Bit 311.2mm FA517G API-7-1 Standard

311.2mm FA517G , Rock Bit, Water Well Drilling Bit , TCI Bit, Rotary Drilling Bit , HDD Pilot Bit


RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

Types & IADC Code

417

437

447

517

527

517

527

537

547

617

627

637


WOB

KN/mm(Bit Dia.)

0.4~0.9

0.4~0.9

0.35~1.0

0.35~1.0

0.5~1.0

0.6~1.1

0.7~1.2

Lb/in. (Bit Dia.)

2285~5142

2285~5142

2000~5714

2000~5714

2857~5714

3428~6285

4000~6857

Rotation Speed (Rpm)

140~60

240~70

125~50

~60

110~50

100~40

80~4



Cone offset

  1. - It forces the cone to rotate around the axis of the bit
  2. - The cone slips as it rotates causing tearing and gouging action
  3. - Amount of offset directly relates to the strength of drilled rock
  4. - Large offset used for soft formation
  5. - Hard brittle rock need no offset
  6. - Medium hard rock need up to 2 offset
  7. - The degree of offset is defined as the horizontal distance between the axis of the bit and a vertical plane through the axis of the journal

Quality Water Well Drilling Bit / HDD Pilot Bit 311.2mm FA517G API-7-1 Standard for sale
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