12 1/4" M1663 Steel Body PDC Drill Bit for Hard Rock Drilling - 311.1mm Diameter, 60-260 RPM

Price Negotiable

Price: USD500-5000/spc

MOQ: 1 pc

Delivery Time: 7-30 days

Product Description

Product Overview

The 12 1/4" (311.1mm) M1663 Steel Body PDC Drill Bit is engineered for demanding hard rock drilling applications across multiple industries including mining, oilfield operations, and construction projects.

Technical Specifications

Parameter	12 1/4" M1663
Bit Size	12 1/4" (311.1mm)
IADC Code	M323
Blade Count	6
Cutter Size	Φ16MM
Nozzle Quantity/Type	6NZ
Gauge Length	2.5"
Connection	6-5/8" API REG
Make-up Torque	51.7-56.9 KN.m
Rotary Speed	60-260 RPM
Weight on Bit	30-140 KN
Max WOB	180 KN
Flow Rate	38-70 LPS

Note: All sizes can be customized according to specific project requirements.

Key Features

High-quality alloy steel body construction for enhanced durability and reduced wear
Advanced welding technology based on Varel International standards for superior bit quality
FireStorm technology for improved wear resistance and thermal stability

Operating Guidelines

Pre-Operation Checklist

Ensure well bottom is clean and free of debris, sand, or metal objects
Verify thread connections and nozzle installations are secure and intact
Begin with minimal pressure to prevent bit damage during initial contact

Drilling Procedure

Start with large displacement turntable operation and thorough well cleaning
Use gentle pressure and low rotation speed during initial bottom contact
Maintain 40-60 RPM bottom hole shape for at least 30 minutes
Follow manufacturer's recommended parameters adjusted for formation conditions

Monitoring & Safety

Ensure smooth, even drilling operations throughout the process
Monitor for signs of bit failure: reduced footage, pressure changes, or torque increases

Product Images

12 1/4 inch M1663 PDC drill bit front view showing cutter arrangement

Technical diagram of M1663 PDC drill bit with dimensional specifications

Close-up view of PDC cutter placement and blade design

PDC drill bit in operational environment demonstrating field application

Packaging and shipment preparation for industrial drill bit transport

Applications

This PDC drill bit is designed for multiple industrial applications including coal mining, oilfield drilling, water conservancy projects, hydropower construction, and building infrastructure development.