Cobble Buster HDD PDC Bits

Specifically designed for HDD applications in cobble, loose rocks and gravel. The cobble buster is one of our most steerable rock bits on the market, manufactured with back out cutters throughout the entire range

Its robust design and cutting structure are developed to provide durability, reliability, and consistent performance in challenging ground conditions.

NameDiameter inchesDiameter mmFace shapeShank or connectionSKUAdd to quote
Cobble Buster HDD PDC Bits - 4 3/4", 120.7, 5 Blades, Cobble Buster HDD, 2 7/8" API REG PIN Connection, Back Out Cutters4-3/4"120.75 Blades2-7/8" API REG PIN ConnectionITM260884
Cobble Buster HDD PDC Bits - 5 1/2", 139.7, 5 Blades, Cobble Buster HDD, 2 7/8" API REG PIN Connection, Back Out Cutters5-1/2"139.75 Blades2-7/8" API REG PIN ConnectionITM260880
Cobble Buster HDD PDC Bits - 5 5/8", 142.9, 5 Blades, Cobble Buster HDD, 2 7/8" API REG PIN Connection, Back Out Cutters5-5/8"142.95 Blades2-7/8" API REG PIN ConnectionITM260890
Cobble Buster HDD PDC Bits - 6 1/2”, 165.1, 5 Blades, Cobble Buster HDD, 2 7/8" API REG PIN Connection, Back Out Cutters6 1/2”165.15 Blades2-7/8" API REG PIN ConnectionITM260901
Cobble Buster HDD PDC Bits - 6 1/2”, 165.1, 5 Blades, Cobble Buster HDD, 3 1/2" API REG PIN Connection, Back Out Cutters6 1/2”165.15 Blades3-1/2" API REG PIN ConnectionITM260913
Cobble Buster HDD PDC Bits - 8 1/2", 215.9, 5 Blades, Cobble Buster HDD, 4 1/2" API REG PIN Connection, Back Out Cutters8-1/2"215.95 Blades4-1/2" API REG PIN ConnectionITM260918
Cobble Buster HDD PDC Bits - 12 1/4", 311.2, 6 Blades, Cobble Buster HDD, 6 5/8" API REG PIN Connection, Back Out Cutters12-1/4"311.26 Blades6-5/8" API REG PIN ConnectionITM260919

SKU: N/A Category:

Description

HDD PDC Bits – COBBLE BUSTER

 

Standard PDC Bits – Standard PDC bits are good if you encounter a variety of ground conditions, from shale through to limestone. We manufacture all our PDC bits from a one-piece high grade alloy steel body for strength and durability.

Jetted PDC Bits – With interchangeable jets we control the volume of drilling fluid used to clean bit teeth to ensure maximum drilling efficiency.

Big Flush PDC Bits – Big Flush PDC Bits provide a high volume of drilling fluid at low pressures to give high performance in softer drilling conditions. Designed specifically for soft sand and shale Big Flush is ideally suited for Geo-Thermal and Waterwell drilling.

HDD PDC Bits – Infinity’s PDC Steering Bits are designed to stay on the centre line of the drill string. Designed with a convex head and a short skirts, the PDC bit steers with reduced side pressure and a smoother cutting action, protecting the diamonds from chipping & breaking.

Reverse Circulation PDC Bits – Reverse circulation PDC bits are designed to allow the cuttings to pass into the drill string and are suitable for soft to medium formations.

Additional information

Diameter inches

4-3/4", 5", 5-1/4", 5-1/2", 5-5/8", 5-7/8", 6”, 6 1/8”, 6 1/4”, 6 1/2”, 6-5/8", 6 3/4”, 8-1/2", 12-1/4"

Diameter mm

120.7, 127, 133.4, 139.7, 142.9, 149.2, 152.4, 155.6, 158.8, 165.1, 168.3, 171.5, 215.9, 311.2

Face shape

3 Blades, 4 Blades, 5 Blades, 6 Blades

Design

Cobble Buster HDD

Shank or connection

2-7/8" API REG PIN Connection, 3-1/2" API REG PIN Connection, 4-1/2" API REG PIN Connection, 6-5/8" API REG PIN Connection

Back Out Cutters

Back Out Cutters, No Back Out Cutters