7 7/8′′ PDC Drill Bit for Water Well Drilling Price

• Customization: Available
• Type: Petroleum Drilling Machine
• Usage: Well Drilling
• Certification: ISO
• Cutters: 13 16 19
• Blades: 3-9
• Transport Package: Wooden Case
• Specification: according requirement
• Trademark: HJ
• Origin: Hebei
• HS Code: 8207191
• Production Capacity: 100

Product Description

Basical Specification
Size of bit	7 7/8''
Number of Blades	5
Primary Cutter Size	16mm
Nozzle Qty.	5NZ
Thread Connection	4 1/2 REG PIN
Operating Parameters
RPM (r/min)	60~300
WOB(KN)	20~110
Application	Soft to medium hard formation with low compre-ssive strength with hard layer.Such as caly, sands-tone, tuff, etc.

Product Description-----high quality PDC drill bit :
1. Cutting structure is force balanced and bit blade is asymmetrically designed so that the load on 
bit is balanced that 
resulting better stability of the bit.
2. Main cutter are high performance PDC cutters to insure service life of the bit while improving ROP.
3. Cutter exposure is optimized to insure the bit can achieve higher ROP is soft to medium formations.
4. Shock absorbers are designed to make the bit capable of drilling through formations with hard strigers.
5. Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance 
cleaning and 
cooling effects of the bit to effectively prevent bit from balling.

Inch	MM	AP(thread)	Blades
4inch	101.6mm	2 7/8	3 blades 4 blades 5 blades 6 blades 7 blades
4 1/2inch	114.3mm
4.5/8inch	117.5mm
4 3/4inch	120.5mm
5 1/8inch	130.2mm
5 1/4inch	133.4mm
5 3/4inch	146mm
5 7/8inch	149.2mm	3 1/2	3 blades 4 blades 5 blades 6 blades 7 blades
6inch	152.4mm
6 1/8inch	155.6mm
6 1/4inch	158.7m
6 11/32inch	161mm
6 1/2inch	165.1mm
6 3/4inch	171.4mm
7 1/2inch	190.5mm	4 1/2	4 blades 5 blades 6 blades 7 blades 8 blades
7 5/8 inch	193.7mm
7 7/8 inch	200mm
8 3/8 inch	212.7mm
8 1/2 inch	215.9mm
8 3/4 inch	222.3mm
9 11/64 inch	233mm
9 1/2 inch	241.3mm	6 5/8	4 blades 5 blades 6 blades 7 blades 8 blades 9 blades
9 5/8 inch	244.5mm
9 7/8 inch	250.8mm
10 1/2 inch	266.7mm
10 5/8 inch	269.9mm
11 inch	279.4mm
11 5/8 inch	295.3mm
12 inch	304.8mm
12 1/4 inch	311.1mm
13 3/4 inch	349.25mm	7 5/8	4 blades 5 blades 6 blades 7 blades 8 blades 9 blades
14 3/4 inch	374.65mm	7 5/8
15 1/2 inch	393.7mm	7 5/8
17 1/2 inch	444.5mm	7 5/8

Product Information:
1. wear resistance
2. high efficiency
3. long service life
4. direct selling with competitive price
5. MOQ: 1pc for testing the quality
6.customized order is available
HENGJI BIT:
There are full types of drill bits for your choosing in Hengji . Include TCI tricone bit,steel tooth tricone bit,single roller cone bit,pdc bit, hole opener,drag bit, etc.
Our bits  are exported to global 58 countries. With good quality drill bits, we are the approved drill bits manufacturer and supplier for famous oil gas companies.As a good reputation OEM supplier, we are also a famous OEM manufacturer for famous companies.
ISO9001 & SGS Certified  drill manufacturer, we are proud to bring you top-quality drill bits at good prices. Door to Door delivery service is available too. Send us a mail to get the best price now.