8 1/2" 4/5 Blades PDC Concave Bits/ Step Bits with PDC Cutters/ PDC Bit for Drilling

• Customized: Customized
• Standard: API, SGS
• Material: Diamond
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Usage: Well Drilling, HDD/Trenchless or Mining
• Available Size: 3" ~ 12 1/4"
• Metric Diameter: 76 mm ~ 311 mm
• Blades/Wings: 3/4/5/6
• Pin Thread Connection Type: API Standard or Customized
• Application: for Coal Mine Use and Geological Exploration
• Available Colors: Gold, Blue, Red, Green, Silver, Black, etc.
• Transport Package: Ply Wooden Boxes
• Trademark: Reet XS (YINHAI)
• Origin: Cangzhou City, Hebei Province, China
• HS Code: 8207191000
• Production Capacity: 50000 Pieces/Year

Product Description

YINHAI WORKSHOP DESIGN & PRODUCTION & WAREHOUSE

YINHAI PDC Concave Bits Details
Sandard Sizes for Immediate Availability: 3" to 12 1/4"  (76mm to 311mm)
Other sizes available upon request

Diameter		Wings/Blades
mm	inch
76	3"	3
89	3 1/2"	3
92	3 5/8"	3 / 4
95	3 3/4"	3 / 4
98	3 7/8"	3 / 4
102	4"	3 / 4
108	4 1/4"	3 / 4
114	4 1/2"	3 / 4
127	5"	3 / 4
133	5 1/4"	3 / 4
146	5 3/4"	3 / 4
152	6"	3 / 4
171	6 3/4"	3 / 4 / 5
191	7 1/2"	3 / 4 / 5
216	8 1/2"	4 / 5 / 6
223	8 3/4"	4 / 5 / 6
251	9 7/8"	4 / 5 / 6
311	12 1/4"	4 / 5 / 6

The cutters made of Polycrystalline Diamond Compact with perfect durability and high drilling speed;
The breaking post made of YG11 alloy as it's substrate, with high torsional strength and can break rock together with the cutters;
The gauge is made of YG8C alloy with perfect wear resistance. It can protect the bit from shrinking during the drilling process;
The size of the nozzles is 8mm~14mm. It can discharge debris at the same time cooling the cutter by using drill fluid;

YINHAI ROCK DRILL BITS FACTORY PROFILE

 

FAQ:
1.Q: Is your company a distributor or a manufacturer?
    A: Manufacturer, We are a 100% real factory of Rock Drill Bits, with 13 years' experience in manufacturing.
       We have experienced design, production and sales teams, also provide you with OEM service.
      Welcome to book a video-call to inspect our factory. to learn more about our production~~

2.Q: How about your products?
    A: Both standardized Drilling bits produced strictly according to API, and Rock Drill Bits-customizing used in various construction works are provided.
        Copy link to view our factory Verified SGS report, SGS Serial NO.: QIP-ASI206122 
https://yinhaibits.en.made-in-china.com/company-HEJIAN-YINHAI-ROCK-BITS-MANUFACTURE-CO-LTD-.html

3.Q: What kind of packing do you have?
    A: Ply Wooden boxes (free of fumigation); Steel Boxes; Customized Packages; Cartons.
4.Q: What is the minimum order quantity for your factory?
   A: It all depends.Generally 1-5 pcs.

5.Q: What about delivery time?
    A: If in stock,prepared to deliver within 1 week, Quick delivery.
       Depends on order quantity, when out of stock, 7-30 days.

6.Q: What is the website about your factory?
   A: yinhaibits.en.made-in-china.com