C21HD Tungsten Carbide Bullet Teeth Rock Bits

Usage: carbide bullet teeth for drilling hard rock or concrete.

Body Material: AISI4140/42CrMo

Tip Material: Tungsten Carbide

Hardness: HRC40~44

Weight: 0.23 kg/pc

Key Features

1. Superior Wear & Impact Resistance

The combination of a forged 42CrMo steel body and a high-grade tungsten carbide tip ensures maximum service life. The bullet-shaped geometry concentrates impact force for efficient rock fracturing while resisting abrasion in gritty conditions.

2. Optimized for Hard Formations

Specifically designed for challenging geology, the C21HD tungsten carbide bullet teeth excels in drilling through hard rock strata, reinforced concrete, and highly abrasive soils, reducing downtime for tooth changes.

3. Interchangeable & Compatible

This C21HD model rock bit auger teeth is a direct replacement for popular Kennametal bullet teeth (C21 series). It is compatible with standard 19mm (0.75") shank holders commonly used on foundation drilling augers and buckets.

4. Rigorous Quality Control

Every batch undergoes strict ISO 9001-managed inspections for dimensions, material integrity, and weldability, guaranteeing consistent performance and easy installation.

We can offer Kennametal tungsten carbide bullet teeth ietm: C31, C31HD, C21, C21HD, C23, C24, U40HD, C34FSR, RL11,RL10,RL09,RL08,RL07,SL02, SM02,SM06, RP21, C4, C6, C7, TS18, TS8, DS01, DS04, DS05, DS06, CM42,U47,U75,U76,U82,U84,U85,U92,U94,U95,U119, U138 etc.
Betek item: B47K17.5H, B47K17.5LK70/60, B47K19H, B47K19/60, B47K22H, B47K22/60H, B3KS, B1HDK11/22/S, B1HDK11/22, BC05 etc.

Inquiry us if you are interested in tungsten carbide bullet teeth for augers!

Welcome to our rock bit auger teeth factory!

All manufacture names, symbols and descriptions are used for reference purpose only!

Why Choose Renewal's C21HD?▼

☑ Rigorous Quality Control: We implement strict quality checks throughout the entire manufacturing process, from raw material inspection to final tungsten carbide bullet teeth testing, ensuring consistent quality.

☑Extensive Manufacturing Experience: With years of dedicated experience in manufacturing drilling tools and wear parts, we possess deep technical know-how.

☑Proven Performance Stability: Our C21HD tungsten carbide bullet teeth have been market-tested and validated, receiving positive feedback from clients globally for their reliable performance.

☑Competitive Pricing: We strive to offer high-quality rock bit auger teeth at competitive prices, providing excellent value for your investment.

☑Responsive Support & Service: Our professional team is ready to provide technical support, consultation, and efficient after-sales service.

Quality Assurance & Service ▼

At Renewal, quality is paramount. Our manufacturing process adheres to a strict quality management system certified by ISO 9001 standards to ensure every tungsten carbide bullet teeth meets high-performance criteria. Each batch undergoes thorough pre-shipment inspections covering dimensions, material properties, and weld integrity. We stand behind our tungsten carbide bullet teeth products; please inquire about our specific warranty policy. Our dedicated technical support team is available to answer your questions regarding application, installation, and troubleshooting.

Packaging & Shipping ▼

Our products are typically packaged in durable plastic boxes or reinforced cartons to ensure safe transport and convenient storage. Palletizing is used for bulk orders. Customized packaging solutions can be arranged upon request to meet specific client needs. Please contact us for rock bit auger teeth detailed information on shipping options, lead times, and international delivery capabilities.

FAQ ▼

1. What is your production capacity?

Over 50,000 pcs each month.

2. How long have you been in this industry?

Since 2000 .

3. Do you do OEM?

Of course.

4. Do you accept sample order?

Yes, please contact us for details.

5. How do you assure the quality of carbide bullet teeth?

Each piece product must be inspected in strict procedure before packing.

6. What is your after-sales service?

Our technology support can be offered if need.

Goods can be return or replaceable if quality problem.

7. What is your payment items?

Usually 30% deposit in advance by TT, delivery against balance. L/C is also OK!

8. What is your delivery time?

5~21 days upon receiving deposit.

9. What is the package?

Plastic box (inner), wooden case (outer).

10. Where is Loading Port?

Shanghai.