Square Kelly / Hexagonal Kelly

Square Kelly / Hexagonal Kelly

  • Our kellys have been exported to Turkey, Hungary, Singapore and Middle East etc.
  • Kellys are manufactured according to API-7-1 Spec.
  • The kellys are made of AISI 4142H-4145H forged or rolled alloy structural steel.
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Nom. Size
(in)		Top Connection(LH)Bottom ConnectionI.D. (in)Drive Section

(in)

Standard

O.D.(in)

Optional

O.D.(in)

Square

O.D.(in)

Hex.

O.D.(in)

SquareHex.AB
2-1/26-5/8REG 7-3/44-1/2REG 5-3/4NC261-1/43-2/7
36-5/8REG 7-3/44-1/2REG 5-3/4NC31   4-1/8NC26   3-3/81-3/41-1/443-3/8
3-1/26-5/8REG 7-3/44-1/2REG 5-3/4NC38   4-3/4NC31   4-1/82-1/41-3/44-1/24
4-1/46-5/8REG 7-3/44-1/2REG 5-3/4NC46   6-1/4NC38   4-3/42-4/52-1/45-4/74-4/5
6-5/8REG 7-3/44-1/2REG 5-3/4NC50   6-3/8NC38   4-3/42-4/52-1/45-4/74-4/5
5-1/46-5/8REG 7-3/45-1/2FH   7NC46   6-1/43-1/4376
6-5/8REG 7-3/4NC56     7NC50   6-3/83-1/43-1/476
66-5/8REG 7-3/45-1/2FH   73-1/26-4/5
6-5/8REG 7-3/4NC56    73-1/26-4/5

Kellys are manufactured with one of two drive configurations, square or hexagonal. Square kellys are furnished as forged or machined in the drive section. Hexagonal or fully machined square kellys are machined from full length quenched and tempered round bars.

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Buyer’s Guide

Please send us your inquiry with detail item description or with Model number. If there is no packing demand we take it as our regular exported standard packing. We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

We can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.

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What our clients say

Testimonials from satisfied clients who love our products and services at Manufacturing Company.

"We reply on rigss for all our petroleum equipment needs. Their quality products and decicated service make them a trusted partner. RIGSS exceeded our expectations with their top-notch equipment and exceptional service. Highly recommended for reliability and efficiency."
Lukasz Goodwin
Apex solution
"Choosing RIGSS was the best decision for our petroleum project.Their expertise and support ensured seamless operations and success."
Darien Ortega
Capital Drilling
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