Hole Opener Manufacturer
With strong alloy steel, premium cutters, and optimized hydraulics, they deliver fast, stable drilling in all formations.
They are tailored to your rig and geology to reduce trips, downtime, and cost per meter.
Common types of Drag Bit
The effectiveness of a drag bit is defined by its design, with different types engineered to excel in specific geological conditions. We engineering team can also produce custom-sized bits to your exact specifications, ensuring perfect compatibility and optimal drilling efficiency.
TCI Hole Opener
Designed with durable TCI inserts for efficient rock breaking in hard, abrasive formations (granite, basalt, quartzite, shale, etc.).
Steel Tooth Hole Opener
Feature long, aggressive teeth for fast drilling in soft to medium formations (shale, clay, mudstone, sandstone). Hardfacing improves wear resistance.
Replaceable Cutter Hole Opener
Allow quick on-site cutter replacement without discarding the tool body. Compatible with both TCI and Milled Tooth cutters for versatile use in varying ground .
Bestselling Sizes of Hole Opener
We stock industry-standard sizes and can build to your custom specifications. The following are our most popular models, available for immediate shipment:
300mm
350mm
400mm
500mm
600mm
700mm
800mm
1200mm
Why Choose EnSheng Hole Opener
We understand that for project leaders and procurement managers like you, a tool is more than just a piece of equipment—it’s a guarantee of your project’s success. Here’s why clients worldwide trust us:
Custom-Engineered for Your Unique Project
Every project has different constraints: rig size, available torque, formation changes along the bore, and the required final hole size.
Instead of forcing you into a one-size-fits-all tool, we engineer the hole opener diameter, cone count, cutting structure, body length and connection type around your geological report and equipment parameters. This reduces the risk of underperforming tools and unplanned downtime.
Custom-Engineered for Your Unique Project
Every project has different constraints: rig size, available torque, formation changes along the bore, and the required final hole size.
Instead of forcing you into a one-size-fits-all tool, we engineer the hole opener diameter, cone count, cutting structure, body length and connection type around your geological report and equipment parameters. This reduces the risk of underperforming tools and unplanned downtime.
Achieve Superior Cost-Effectiveness with Factory-Direct Pricing
As the direct manufacturer, we control the full process from forging, machining and heat treatment to final QC.
You get high-performance tools built with premium alloy steel and top-grade tungsten carbide inserts at factory-direct pricing—without distributor markups. Longer tool life, fewer trips and lower cost-per-foot drilled combine to maximize your return on every project.
Key Technical Specifications of Hole Opener
Clear data helps you make informed decisions. The tables below summarize our standard engineering options. Detailed technical data sheets (TDS) are available for each specific model on request.
| Technical Parameter | Specification Options | Advantage & Application |
| Cutting Structure | TCI (Tungsten Carbide Insert) / Milled Tooth / Replaceable Cutter | TCI for medium-hard to extremely hard and abrasive rock; milled tooth for soft to medium formations. Replaceable cutter designs reduce downtime and tool cost. |
| Number of Cones | 4, 5, 6, 7, 8, 9, 10 or more | More cones distribute load and torque, providing smoother reaming in larger diameters and hard formations. |
| Connection Type | API Reg, IF, FH (Box / Pin) | Ensures compatibility with major drill pipes and rigs worldwide. |
| Body Diameter Range | 6″ to 60″+ (152–1524+ mm) | Covers everything from pilot hole enlargement to large-diameter foundation and HDD bores. |
| Formation Suitability | Soft, Medium, Hard, Very Hard & Interbedded formations | Solutions for clays, sandstones, shales, limestones, granites and mixed ground. |
| IADC Codes | 217, 417, 517, 537, 617, 637, etc. | Lets you precisely match cutting structure to formation hardness and abrasiveness. |
Key Technology Highlights
See how the EnSheng Hole Opener can revolutionize your operations.
Extreme Durability in Hard Formations
Our hole openers, made with durable Tungsten Carbide Inserts (TCI), outlast Milled Tooth cutters, staying sharp in granite, shale, or mixed formations, minimizing tool changes and trips.
Superior Cutting Performance
With 3–6 cones in a balanced, 360° design, our cutters deliver smoother, faster reaming and a true-to-gauge hole—while lowering torque stress on the drill string and rig.
Quick Cutter Replacement
Our field-replaceable cutter models let you change a worn cone on-site with basic tools, eliminating the need to replace the full opener and cutting downtime.
Versatile for Diverse & Demanding Applications
Trusted worldwide in HDD, water wells, geothermal, mining, and construction, our hole openers handle high torque and tough geology with ease.
Precision-Engineered for Your Drilling Project
Not sure which model is right for your project? Our experts will provide the best recommendation based on your geological report and equipment parameters.
Water Well & Geothermal Drilling
Ideal for hole opening operations in deep, complex formations to ensure smooth casing runs.
Horizontal Directional Drilling (HDD)
Delivers powerful rock-breaking capability and borehole stability when installing pipelines through gravel, cobble, and hard rock formations.
Mining & Construction
Used for large-diameter blast holes, bridge foundations, and a wide range of infrastructure projects.
Oilfield Drilling Project
Designed for deep oil and gas drilling. Handles high pressure and tough rock formations for efficient resource extraction.
Manufacturing & Quality
Every EnSheng tool is born from an uncompromising commitment to quality.
Premium Raw Materials
We use premium alloy steel and top-tier tungsten carbide for the tool body, rigorously inspected for quality.
Precision Machining
Advanced CNC machining ensures precise dimensions and threads for a perfect fit.
Advanced Heat Treatment
Our proprietary heat treatment boosts the tool body’s strength and toughness for high-impact drilling.
Stringent Quality Control
Strict QC protocols monitor every step, from raw materials to final testing, ensuring flawless tools.
Exceptional After-Sales Service
We know that efficient communication and dependable service are your top priorities.
Dedicated Account Manager
You will be assigned a single point of contact to follow up on your orders, logistics, and any questions, eliminating communication delays.
Expert Technical Support
If you encounter any technical challenges or operational questions, our engineering team is on standby to provide professional solutions.
Reliable Global Logistics
We partner with leading freight forwarders to ensure your goods are delivered safely and on time to any port worldwide, so you never miss a project deadline or sales season.
Your Questions, Answered
Find answers to your most common questions here. For anything else, please don’t hesitate to contact us.
Simply provide us with your geological report or a description of the formation (e.g., rock type, hardness), and our technical experts will recommend the most suitable IADC code and cutter design. As a general rule, the first digit of the IADC code indicates formation hardness (1-3 for soft, 4-5 for medium, 6-8 for hard).
Standard-sized products are often in stock and can be dispatched within 1-3 business days. The production lead time for custom tools is typically 15-30 days, depending on the complexity. We work with trusted international freight forwarders to provide you with various shipping options (sea, air) and accurate ETAs, giving you full control over your timeline.
Great question! It depends on your formation and application:
PDC Reamers: These shear rock, cutting fast and efficiently in soft to medium-hard formations like shale, mudstone, or sandstone. But they’re not ideal for gravelly or super hard formations due to impact sensitivity.
TCI Hole Openers: These crush and gouge rock, perfect for hard, very hard, or abrasive formations, especially with gravel or cobbles. They’re also great for reaming with lower torque needs.
We get it—quality matters! Here’s how we ensure top-notch standards:
Thorough Inspections: Every tool goes through multiple checks, from raw material analysis to in-process reviews, heat treatment verification, and final non-destructive testing. Want proof? We can share QC reports or even give you a virtual factory tour!
Premium Materials: We use only high-strength alloy steel and top-grade tungsten carbide from certified, world-class suppliers.
Global Standards: Our production follows the ISO 9001 quality management system to a tee.
Call Us or Fill Out the Form Below
Our service team will reply to you within 1 business day.
+86 13673277680
+86 13673277680
info@enshengbit.com
Office Address：Economic Development Zone (West Area), Hejian City, Hebei Province, China
Boost Your Business with EnSheng!
Send us a message if you have any questions or need a quote. Our experts will respond within 24 hours and help you select the right bits for your needs.
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