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9 7/8 CHV637L

9 7/8 CHV637L is part of Single Roller Cone Bit,Shareate' S horizontal directional drilling products have formed a variety of series, including tricone bits, reamers and trenchless bits.

PRODUCT SPECIFICATION

CUTTING STRUCTURE
Spherical on outer rows, conical on inner rows.
Designed for high compressive strength, medium hard, highly abrasive layers such as flint, limestone, sandstone and dolomite.
Compressive strength: 29,000-38,000 psi
SHIRTTAIL PROTECTION
Hard welding and wear resistant carbide protection on shirttail and lug back.
PRODUCT SPECIFICATION
IADC Code:  637
Bearing Type: Journal bearing/Rubber sealing ring
Circulation Type: Mud
Cutting Structure:
Inner rows: Conical
Outer rows: Spherical
Gage bevel Protection: Flat
Pin Connection:  6 5/8″ API REG
Bit Diameter: 250 mm
Product Weight:  65Kg
OPERATING SUGGESTIONS
Weight on Bit:  0.7--1.2 kN/mm
Rotational Speed: 40-70 rpm

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