12 1/4 Inch Drill Bits Diamond Pdc Bit Water Well Drilling Stone Rock Cutting Tools

The bit is made from high-quality steel and wear-resistant material, which is welded onto the blades to protect them from erosion.

The body of the bit is created from a single piece of alloy and finished using advanced CNC machining.

The bit has large and deep slots to clean and cool the drilling fluid, allowing for faster drilling and preventing material build-up.

High-performance PDC cutters are used, increasing the bit's ability to drill through tough areas and extending its lifespan.

Different types of PDC cutters are chosen and the bit's design is optimized to suit various drilling conditions and meet different requirements in soft to medium-hard formations.

We can design and produce different bits based on the specific needs of our customers.

Basical Specification
Size	12 1/4 inch
IADC code	S516
Thread	6 5/8 inch
Type	steel body
No.of Nozzles	7
Gauge Length	3.0
blade	5
Operating parameter
RPM(r/m)	60~300
WOB(KN)	20~140
Flow Rate (lps)	5~30
Formation	Soft and medium soft layer,high abrasive formation

PDC drill bit features:

1. Soft to mediun-hard formation application.

Medium parabolic crown profile and heavy cutter density provide high ROP in medium to hard formations with medium compressive strength and small abrasive layers.

2. multi-function hydraulics

The deep blade design can get high ROP in medium to hard formations and can effectively cool the bit in hrad and abrasive formations .

3. longer bit life

High intensified gage design provides for long runs on steerable system through hard and abrasive formations as teering application.

PDC ROCK BIT Option Features:

PDC Cutters

Different features of PDC cutters can be chosen in different wells or formations for maximizing both drill efficiency and economic

Gauge length

Short：Improved bit steerability and tool face control for directional or horizontal drilling, reduce slide section by achieve builds more quickly.

Extend：Enhances bit stability and allows more area for gauge protection components, improves bole hole quality.

Active gauge

Protect the gauge and improved hole quality

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

HENGJI Advantages

--The first-class engineers of tricone bits and PDC bits

--Advanced technology and Equipment, International standard.

--R&D center for rock drilling tools, high precision CNC machines, SGS&ISO Certified.

--10+ Years & 40+ Countries service experience.

--Optimized solutions for various of requirement

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.

Packaging

Wood Box

Fumigation Tray if necessary

Other special package can be applied according to customer's need