factory customized 8 1/2 Inches Pdc Drill Bit - Replaceable Sleeve Stabilizer – LUQI
factory customized 8 1/2 Inches Pdc Drill Bit - Replaceable Sleeve Stabilizer – LUQI Detail:
Replaceable sleeve stabilizer consists of mandrel and sleeve. The function is the same as spiral integral blade stabilizer. It can suit to different hole size and increase working life by changing the different size sleeve. The sleeve is threaded on the mandrel, so the sleeve can be fasten to the mandrel tightly and changed easily.
Working outside diameter OD mm(inch) |
Salvage diameter OD mm(inch) |
Upper end |
Lower end |
Hole ID mm(inch) |
Neck length mm(inch) |
Total length mm(inch) |
Remarks |
149.2 (5 7/8) |
120.7 (4-3/4) |
NC38 |
NC38 |
50.8(2) |
559(22) |
1372 (54) |
Drill string type |
31/2REG |
Near bit type |
||||||
152 (6) |
120.7 (4-3/4) |
NC38 |
NC38 |
50.8(2) |
559(22) |
1372 (54) |
Drill string type |
31/2REG |
Near bit type |
||||||
215.9(8-1/2) |
165 (6-1/2) |
NC50 |
NC50 |
71.4 (2-13/16) |
686(27) |
1676(66) |
Drill string type |
41/2REG |
Near bit type |
||||||
311.15(12-1/4) |
203(8) |
6-5/8 REG |
6-5/8 REG |
71.4 (2-13/16) |
610(24) |
1550(61) |
Drill string type |
Near bit type |
|||||||
444.5(17-1/2) |
229(9) |
7-5/8 REG |
7-5/8 REG |
76.5(3) |
686(27) |
1702(67) |
Drill string type |
Near bit type |
|||||||
660.4 (26) |
241.3 (9 1/2) |
7-5/8 REG |
7-5/8 REG |
76.5(3) |
660(26) |
1930(76) |
Drill string type |
Near bit type |
|||||||
711.2(28) |
241.3 (9 1/2) |
7-5/8 REG |
7-5/8 REG |
76.5(3) |
686(27) |
1981(78) |
Drill string type |
Near bit type |
Product detail pictures:


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Our commission is to serve our users and clients with best quality and competitive portable digital products for factory customized 8 1/2 Inches Pdc Drill Bit - Replaceable Sleeve Stabilizer – LUQI , The product will supply to all over the world, such as: Toronto, Qatar, Suriname, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information and we will offer you competitive price list then.

The product manager is a very hot and professional person, we have a pleasant conversation, and finally we reached a consensus agreement.
