Overview
High penetration efficiency, stable operation, low consumption for the best cost-performance.
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What a Tricone Bit Is Judged On
Three things decide whether a tricone bit earns its cost: how fast it drills, whether it stays stable in the hole, and how much it consumes getting there. A bit that drills fast but has to be pulled early is more expensive per metre than a slower, steadier one.
Penetration and Stability
KISN tricone bits are built for high penetration efficiency with stable operation — the bearings and the cutting structure are matched so the bit holds its line and its speed rather than running out of condition before the formation is finished.
Size Coverage
Bits are supplied from 5⅝ in to 16 in (143 mm to 406 mm), covering water well, mining and construction work. Hole diameter and thread are listed for every size on this page.
Where It Works
Water well drilling, mining and quarry drilling, and construction and foundation work where a roller cone bit is run.
Where It Ships
Supplied to drilling contractors in Africa, Southeast Asia and the Middle East.
Technical Data
| Size IN | Hole Dia. MM | Thread |
|---|---|---|
| 5 5/8 | 143 | 3 1/2 REG API |
| 6 3/4 | 171 | 3 1/2 REG API |
| 7 7/8 | 200 | 4 1/2 REG API |
| 8 1/2 | 216 | 4 1/2 REG API |
| 9 | 229 | 4 1/2 REG API |
| 9 7/8 | 251 | 6 5/8 REG API |
| 10 5/8 | 270 | 6 5/8 REG API |
| 11 | 279 | 6 5/8 REG API |
| 12 1/4 | 311 | 6 5/8 REG API |
| 13 3/4 | 349 | 6 5/8 REG API |
| 16 | 406 | 7 5/8 REG API |
Frequently Asked Questions
What sizes of tricone bit do you supply?
5⅝ in to 16 in, from 143 mm to 406 mm hole diameter. Hole diameter and thread are listed per size on this page.
What are they used for?
Water well drilling, mining and quarry drilling, and construction and foundation work.
How do I choose the right bit?
Match the hole diameter and thread to your string, and tell us the formation — bit selection depends on what you are drilling through.
What is the minimum order and lead time?
Standard minimum order is 10 pieces, with a lead time of 10 days. Special specifications are made to order.