4 1/2 Inch IADC517/537 Tricone Bit Roller Cone Bits Rock Drilling Tools
Basic Info.
Tooth Type
-Scoop Inserts -Chisel Inserts -Flat Inserts
Lug/Shirttail Protection
Hardmetal with Ovoid Inserts
Rpm(R/Min)
120~50 Rpm
Wob(Kn)
0.45~1.00kn/mm
Trademark
YINHAI
Origin
Cangzhou City, Hebei Province, China
HS Code
8207191000
REAL SHOT FOR CUSTOMER ORDER BITS 
YINHAI PRODUCTION WORKSHOP PROFILE 
Note: This size of bit is not suitable for operation under high WOB and installation of nozzle. Note :The upper limits of WOB and RPM in above table should not be used simultaneously. YINHAI market/business: We have many VIP customers from Africa, Europe, and America, including India, Pakistan, and Singapore, who order drill bits in bulk from our company every year. Our bits have been being sold well and running stably in Europe, Africa, and America. They all like our drill bit very much. 
FAQ: 1.Q:Is your company a distributor or a manufacturer? A: Manufacturer, We are a 100% real factory of Rock Drill Bits, with 12 years' experience. And We have passed the factory audit by SGS. 2.Q:How about your products? A : Both standardized tricone bits and PDC bits produced strictly according to API and rock bits-customizing used in various construction works are provided. 3.Q:What kind of packing do you have? A: Ply Wooden boxes (free of fumigation); Cartons; Packing can be customized. 
4.Q:What is your price advantage? A:We are 100% factory directly sales,API production process guarantee,Provide customized services for brand processing. Reduce the cost of drilling for you, worry free after-sales service. Welcome to book a video-call to inspect our factory. 5.Q:What is the minimum order quantity for your factory? A:It all depends. Generally 1-5 pcs. 6.Q:What is the website about your factory? A:yinhaibits.en.made-in-china.com
YINHAI PRODUCTION WORKSHOP PROFILE 
Tech Data of 4 1/2” IADC537
| TRICONE BITS YHA 4 1/2-537G | |
| Size(INCH/Metric Meter)： | 4 1/2 INCH=114.3 mm |
| IADC CODE： | 5-3-7 |
| Bearing Type： | Rubber Sealed Journal Bearing |
| Cutting Structure： | Tungsten Carbide Inserts Inner and Nose Rows-SCOOP Gauge Row-CHISEL Gauge Bevel Protections-FLAT |
| LEG/Shirttail Protection： | Hardmetal and Ovoid Insert |
| Pin Connection： | 2 3/8” API REG |
| Net Weight/Gross Weight ： | 12 KG/ 14KG |
| Package Size（mm*mm*mm） | 150*140*240 |
| Suitable Formation :Soft to medium formation with low compressive strength,such as mid-soft shale,mid -soft limestone,mid-soft sandstone and medium formation with harder abrasiveness interbeds | |
FAQ: 1.Q:Is your company a distributor or a manufacturer? A: Manufacturer, We are a 100% real factory of Rock Drill Bits, with 12 years' experience. And We have passed the factory audit by SGS. 2.Q:How about your products? A : Both standardized tricone bits and PDC bits produced strictly according to API and rock bits-customizing used in various construction works are provided. 3.Q:What kind of packing do you have? A: Ply Wooden boxes (free of fumigation); Cartons; Packing can be customized. 
4.Q:What is your price advantage? A:We are 100% factory directly sales,API production process guarantee,Provide customized services for brand processing. Reduce the cost of drilling for you, worry free after-sales service. Welcome to book a video-call to inspect our factory. 5.Q:What is the minimum order quantity for your factory? A:It all depends. Generally 1-5 pcs. 6.Q:What is the website about your factory? A:yinhaibits.en.made-in-china.com 
