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FSA Series Tungsten Drill Bits 12 1/4" FSA537G With Trimming Cutter

China FLRT Bit certification
China FLRT Bit certification
Good result of the FLRT natural diamond drill bit. Thank you.

—— Bryan

We have ordered the tricone bits to drill shallow oil well and some times make hdd hole openers. The quality is good

—— Petter

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FSA Series Tungsten Drill Bits 12 1/4" FSA537G With Trimming Cutter

FSA Series Tungsten Drill Bits 12 1/4" FSA537G With Trimming Cutter
FSA Series Tungsten Drill Bits 12 1/4" FSA537G With Trimming Cutter

Large Image :  FSA Series Tungsten Drill Bits 12 1/4" FSA537G With Trimming Cutter

Product Details:
Place of Origin: China
Brand Name: FLRT
Certification: API-7-1, ISO 9001:2008
Model Number: 12 1/4" FSA537G
Payment & Shipping Terms:
Minimum Order Quantity: 10pcs
Price: 2000 USD/pc
Packaging Details: plywood box / iron box
Delivery Time: 5~45 workdays
Supply Ability: 300pcs per quarter
Detailed Product Description
Bearing Type: Sealed Journal Cutting Material: TCI
Standard: API-7-1, ISO 9001:2008 Series: FSA
Connection: 6 5/8" API Reg. PIN Protection On Heel Row: Trimming Cutters
TRC: Three Roller Cone
High Light:

rotary drill bit


mill tooth tricone bit

12 1/4" FSA537G , Rubber Sealed Journal Bearing , TRC Bit , Tungsten Carbide Insert , Trimming Cutter





Types & IADC Code 117 127









WOB KN/mm(Bit Dia.) 0.35~0.8 0.35~0.9 0.35~0.9 0.35~1.0 0.45~0.95 0.45~1.1 0.5~1.1
Lb/in. (Bit Dia.) 2000~4271 2000~5142 2000~5142 2000~5714 2571~5714 2571~6285 2857~6285
Rotation Speed (Rpm) 240~80 240~70 240~70 220~60 220~50 200~50 180~40



Roller Cone Bit Tips


The bits are sub divided into different categories depending on soil condition. There are three main categories: soft, medium and hard formation bits. Soft formation rock bits are used in unconsolidated sands, clays, soft lime stones, red beds and shale. Medium formation bits are used in calcites, dolomites, lime stones, and hard shale, while hard formation bits are used in hard shale, calcites, mudstones, cherty lime stones and hard and abrasive formations.


The cutting structure of the bits varies according to the rock formation. Soft bits will have longer protruding teeth or chisel-shaped buttons, and fewer, more widely arranged teeth. Medium formation bits will have much closer teeth than soft formation bits, and the protrusion of the teeth is reduced. The teeth are very short and closely arranged on hard formation bits. Because of the shorter teeth the penetration of the rock bit during drilling is less than with soft or medium formation bits, but the other bits cannot be used in hard strata.


The bits are further classified based on their internal bearings. Each bit has three rotating cones and each one will rotate on its own axis during drilling. While the bits are fixed to the drilling rigs, the rotation of the drill pipe will be in a clockwise direction and the roller cones are rotated in an anti-clockwise direction. Each roller cone is rotated on its own axis with the help of the bearing. Again, the bearings are classified mainly into three types: Open bearing bits, Sealed Bearing Bits and Journal Bearing bits.

Contact Details

Contact Person: Miss. Jade

Tel: 0086-10-63405086

Fax: 86-10-63407657

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