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Diamond tricone bit IADC216 7.5 inches (190mm)

Product Description

Wholesale API steel tooth tricone rotary roller rock drill bit in stock based on the lowest quotation and excellent quality from China supplier
Bit Description:
IADC: 216 - Steel tooth sealed roller bearing bit with gauge protection for medium to medium hard formations with high compressive strength.
Compressive Strength:
0 - 35 MPA
0 - 5,000 PSI
Ground Description:
Very soft, unstratified, poorly compacted rocks such as poorly compacted clays and sandstones, marl limestones, salts, gypsum, and hard coals.
We can offer mill tooth and TCI tricone drill bits in a variety of sizes (from 3 ” to 26”) and most of IADC Codes.

According to cutting material,three cones bit can be divided into TCI bit and Milled Tooth Bit
Choose the proper rocks drilling bits is very important before starting project.
Rocks hardness could be soft , medium and hard or very hard, hardness of one type of rocks may be also a little different, for example, limestone, sandstone, shale has soft limestone, medium limestone and hard limestone, medium sandstone and hard sandstone , etc.
In drilling project, Far Eastern have 15 years and more than 30 countries services experience to supply the drill bits and advanced drilling soulutions for many different applications. The application including oil field,natural gas,geological exploration,driectional boring,mining ,water well drilling ,HDD, construction,and foundation.The various drill bits can be customized as per different rock formation becasue we have our own API & ISO certified factory of drill bits. We can give our engineer's solution when you can supply specific conditions, such as hardness of rocks,types of drilling rig,rotary speed,weight on bit and torque. It is also hlep us to find the siutable drill bits after you can tell us vertical well drilling or horizontal drilling ,oil well drilling or No-Dig drilling or foundation piling.

Product Specification

Basical Specification

Size of Rock Bit

7 1/2"


Bit Type

Steel Tooth Tricone Bit/ Milled tooth Tricone Bit

Thread Connection



IADC 216

Bearing Type

Journal Sealed Roller Bearing

Bearing Seal

Rubber Seal

Heel Protection


Shirttail Protection


Circulation Type

Mud Circulation

Drilling Condition

Rotary drilling,high temp drilling,deep drilling,motor drilling



Operating Parameters

WOB (Weight On Bit)

12,842-36,385 lbs





Soft to medium formations with high compressive strength, such as mudstone,gypsum,salt,soft limestone ,etc.


Sealed Roller Bearings have some of the features of the non-sealed open bearings, but longer lifetime because the bearings are sealed with an O' Ring Seal.
A lubrication and compensator system prevents leakage into the bearing system and stops the possibility of debris blocking the bearing as well as leakage of grease.
7 1/2 inches is a regular size in water well drilling, it is working well with small capacity drilling rigs and widely used in the world.