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Hardware & tools
8 1/2 Inches PDC Bits With 16mm Cutters And 3 Blades
<p>Applicability: drill bits are suitable for various soft and hard formations, and their design can effectively deal with formations containing abrasive interlayers, while also having good impact resistance and wear resistance.</p><p><br/></p><p>Application：It works best in homogeneous soft to medium-hard formations.</p>
SupplierHEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD.www.yhrockdrill.com
About this product
Product information from the supplier.
Details
size (in) | 8 1/2″ |
size (mm) | 215.9 |
Number of blade | 3 |
Primary cutter size(mm) | 13 |
Nozzle qty | 6 |
Gauge length | 2″-3.5″ |
Connection | 4-1/2″ API REG |
Recommended RPM (r/min) | 60-250 |
Recommended WOB (KN) | 10-100 |
Recommended flow rate(lps) | 20-35 |
Net / Gross weight (kg) | *（Based on actual products） |
Package dimension (mm) | 580×282×285 |
Note :The upper limits of WOB and RPM in above table should not be used simultaneously.
The Characteristics of PDC Bits
1.The PDC bit is made entirely of medium carbon material. Holes are drilled on the working face of the drill bit, and the PDC cutting teeth are fastened to the drill bit crown by a press-fit method.
2.The drill bit crown is treated with a surface hardening process to enhance its erosion resistance.
3.Advantages and Disadvantages：
Advantages：Simple manufacturing process
Disadvantages：The drill bit body is not resistant to erosion, and the cutting teeth are difficult to secure.
Structure and Materials: PDC drill bits adopt a steel body structure, mainly made of alloy steel, with high strength and toughness. The cutting teeth are usually polycrystalline diamond (PDC) composite cutters, which have high hardness and good wear resistance, and can effectively improve the service life and drilling efficiency of the drill bit.
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HEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD.
