Specifications IADC 7 Series tricone bit for mine

2.certified by ISO,API

3.wide size code

4.best price

5.delivery on time

12 1/4 inch?IADC?7 Series tricone bit for mine ? ? Company profile: ? HeJian Rui Da Petroleum Materials Co.Ltd. , with the convenient transportation, developed economy and superior geographical position, is located in the No.106 national highway, Hebei Province. Our company will sincerely provide you excellent products and professional services because of its strict governance, latest technologies, advanced production equipment and perfect detection system. We have a capable scientific research team and staff with professional construction skills, as well as reliable production technologies. We are confident that Rui Da Co.Ltd. will occupy China's market in the near future through our consistent efforts ? ? Specifications: ? ?

IADC			437		517		537		617		637		737
WOB	KN/mm?(bit?dia.)	0.5-0.75		0.5-0.85		0.5-0.85		0.55-0.85		0.55-0.85		0.55-0.85
	Lb/in?(bit?dia.)	2860-4280		2860-4860		2860-4860		3140-4860		3140-4860		3140-4860
	r.p.m	70-45		70-45		70-45		70-45		60-40		60-40

?? TCI bits series ? 437 Soft Formation TCI Tricone Bits ? This cutting structure design,combined with maximum cone offset,results in high bit penetration rates.The deep intermesh of cutter rows prevents bit bailing in sticky formations . ? 517 Medium Formation TCI Tricone Bits ? This design provides a fast drilling rate and added cutting structure durability in medium-to-medium hard formations .The HSN rubber O-ring provides adequate sealing for bearing durability. ? 637 Hard Formation TCI Tricone Bits ? The 637 bits are used in the outer rows to prevent loss of bit gauge .Maximum numbers of hemispherical shaped inserts are used in all rows to provide cutter durability and long life . ? 617 Medium-Hard Formation TCI Tricone Bits ? This design provides a fast drilling rate and added cutting structure durability in medium to medium hare formations .The HSN rubber O-rin provides adequate sealing for bearing durability. ? IADC CODE:112 121 131,127 ,137,215 216 217 ,311 312 315 317,327,417 427 437,415,425,435,517,527 ,537,547,517,525,535,617,627,637,647,625,635,637,712,737,837,832 ? Please?get?back?to?my?email?address?or?call?me: ? You?can?provide?us?the?following?information?. ? Bit?size?? Drilling?formation? IADC?CODE Destination ? You?may?have?any?questions?,please?ask?us?freely?. ? Any?inquiry?is?welcomed?here??. ? 1)?How?to?send?money?to?us??? ? We?can?send?you?our?bank?account?information?after?the?contract?is?made??.By?T/T?,Western?union?.... ? 2)?What?is?the?MOQ??? ? Small?trial?order?is?acceptable??,like?1pc,2?pcs.... ? 3)?Inspection?is?possbile??? ? Yes,?you?are?welcome?to?our?company?at?any?time?or?you?can?make?inspection?through?Third?inspection?agent?,like?"SGS"?,BV?and?so?on?. ? 4)??How?to?transport?the?bits??? ? By?sea?,by?air?,by?DHL,by?UPS??and?so?on?.... ? Do?you?have?any?questions???Please?don't?hesitate?to?ask?me?and?you?will?get?the?satisfactory?response?once?you?contact?us? ? ? ? ?? ? ? ? ? ?