1. There is a Tri Cone suitable for any rock formation
2. Tricone bit is versatile and can handle changing formations
3. Tri Cones are reasonably priced, long lasting and have an efficient drilling rate

IADC Classification system

• 4 character code, first 3 characters are numbers, the last is a letter
• 1st number is the series. 1 to 3 represent a milled tooth tri cones, 4 – 8 represent TCI tri cones. The higher the series number the harder more abrasive the rock formation is.
• 2nd number is the relative degree of hardness within a series. The number ranges from 1 – 4, the higher the number the harder the formation
• 3rd number represents bearing design and gauge protection
  1. Open bearing
  2. Roller bearing air cooled
  3. Open bearing gauge protected
  4. Sealed roller bearing
  5. Sealed roller bearing gauge protected
  6. Sealed friction bearing
  7. Sealed friction bearing gauge protected
• 4th character is a letter and describes optional features. There are 16 alphabetic character’s, each representing the Tricones most significant feature.