Concentric Wing System Overburden Drilling Bit Tw178 Theree Wing System Bit Three Wing Concentric Bit

• Customization: Available
• After-sales Service: One Year
• Warranty: One Year
• Model NO.: TW178
• Certification: ISO 9001:2008
• Standard: AISI, ASTM
• Surface Treatment: Polishing
• Manufacturing Process: Forging
• Material: Tungsten Carbide
• Bit Shank: DHD,SD,Ql,Mission,Mach,Numa
• Suitable Hammer Model: 3"-18" Hammer
• Application Casing: PVC Pipe, Steel Pipe
• Applied: Drifting&Tunneling&Mining, Blasting
• Transport Package: Wooden Box
• Specification: 5-12mm
• Trademark: STAROCKDRILL
• Origin: China
• Production Capacity: 20000sets/Month

Product Description

DTH Drill Bits Concentric System Wing System Bit for Water Well & Construction Symmetric three wing bit

At Starockdrill, we believe in challenging conventional practices to deliver groundbreaking solutions. After three years of relentless dedication, we have developed a remarkable drilling tool - the concentric casing system with three jaws.

Specification

 

Features

1.Enhanced Durability: We employ state-of-the-art heat treatment techniques to strengthen the surface of our drill bits, ensuring prolonged drilling lifespan and exceptional wear resistance.

2.YK05 Alloy Material: Our tools incorporate YK05 alloy material, ensuring stable airflow during the drilling process and enabling faster drilling speed.

3.Triangular Design: By utilizing the principles of trigonometry, we have crafted the three-jaw drilling tool, facilitating straighter hole formation.

4.Flexible and Efficient Operation: Our three-jaw drilling tool offers versatility and simplicity, enabling workers to carry out construction tasks with higher efficiency.

Product Introduction

This game-changing innovation enables the use of cost-effective PVC casing as a substitute for traditional steel casing, addressing the cost concerns associated with water well drilling. Our solution is versatile, adapting to various formations, including soil, flowing sand, small pebbles, and highly weathered rocks.

Trusted by global drilling contractors and customers who looking for high quality drilling tools for their drilling rigs and rock drilling machines, we would be honored to have the opportunity to earn your trust and provide you with rock drilling products that meet your application needs.

Application scenarios

The versatility of our Symmetric three wing bit makes them widely applicable across various industries, including open-pit mining, underground mining, tunneling, anchoring projects, blast furnace tapping, tunnel construction, hydroelectric projects, quarrying, and various other construction projects.andling, land preparation.

Technical Specifications

(Custom configurations available upon request.)

Model	Casing OD: (MM)	Casing ID:(MM)	Reamer (MM)	Casing shoe ID (MM)	Hammer	Drill Rod (MM)
TW127	127	113	145	100	4 INCH HAMMER	76
TW146	146	130	159	115	4 INCH HAMMER	76
TW168	168	148	180	138	5 INCH HAMMER	76/89
TW178	178	158	190	148	5 INCH HAMMER	76/89
TW183	183	163	195	152	5 INCH HAMMER	76/89
TW194	194	174	210	160	6 INCH HAMMER	89/114
TW219	219	199	237	187	6 INCH HAMMER	89/114
TW245	245	225	265	211	8 INCH HAMMER	114
TW273	273	253	308	236	8 INCH HAMMER	114
TW323	323	303	360	282	10 INCH HAMMER	114

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

Packaging & Shipping

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

HENAN STAROCKDRILL EQUIPMENT CO., LTD

Welcome to Starockdrill, a specialist manufacturer of rock drilling tools. Since our establishment in 2008, Henan Starockdrill Equipment Co., Ltd. has been committed to the research, development, and production of rock drilling tools. Our mission is to provide customers with high-quality, efficient, and reliable drilling tools and solutions, helping them enhance productivity, reduce costs, and create more value.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Concentric Casing System(Ring Bits)
Concentric Casing System (Blocks)
Concentric Casing System (Wings)
Concentric Casing System(Three Jaws)

Certifications

Project Case

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.