How to Buy Drill Steel, Rock Bits & Whirley Bits from Champion Chisel Works
Whether you're drilling concrete, creating dowel holes for highway expansion, or working in heavy infrastructure and utility installation, having the right drill steel and bits matters. You need tools that are tough enough to penetrate reinforced concrete, reliable enough to last under pressure, and compatible with your pneumatic or rotary equipment.
At Champion Chisel Works, we supply a full line of drill steel, rock bits, and Whirley bits built for professional contractors, municipal teams, and industrial drilling operations. From H-Thread stems to tapered steel and concrete doweling bits, Champion offers high-performance tooling made in the USA and trusted on real-world job sites.
In this guide, we’ll walk you through the main product types, what each is used for, and how to buy the right drilling tools for your project.
What Are Whirley Bits?
Whirley Bits, also known as concrete doweling drill bits, are specialized tools used to drill precise, repeatable holes in poured concrete structures—most often for dowel pin installation in highway expansion joints or airport runway repairs.
These bits are commonly used in:
- Highway expansion and concrete panel replacement
- Road and runway maintenance
- Bridge deck doweling
- Pavement repair and patching
Champion Chisel offers multiple shank and collar configurations to ensure compatibility with various pneumatic drills, including Whirley Bits, DKR-32 Bits, UT-7 Bits, and CP-style bits (e.g., CP-9A, MRD-9, 6LHD).
Popular Sizes Available:
- 1" Hole 7/8" x 3-1/4" x 9" Whirley Bit – SKU: WB1019-1 – $138.57
- 1" Hole 7/8" x 4-1/4" x 24" Whirley Bit – SKU: WB11124-1 – $152.86
- 1" Hole 1" x 4-1/4" x 24" Whirley Bit – SKU: WB10224-1 – $187.14
All Whirley Bits are carbide-tipped and precision-machined for consistent bore performance.
What Is Drill Steel?
Drill steel is the shaft or stem used to hold a rock bit or carbide tip for drilling into concrete, rock, or asphalt. At Champion Chisel, drill steel is offered in a variety of styles to support different types of drilling systems:
1. H-Thread Drill Steel
H-Thread steel is threaded to accept matching bits and is built for general-purpose rock and concrete drilling.
Available Options:
- 1" x 4-1/4" x 12" H-Thread Drill Stem – SKU: DSH10212 – $80.50
- 1" x 4-1/4" x 24" H-Thread Drill Stem – SKU: DSH10224 – $124.96
- Available up to 120" lengths upon request
2. Tapered Drill Steel (11-Degree)
Tapered steel allows quick bit changes and is commonly used for hand drilling or small pneumatic rigs. The 11-degree taper allows the bit to stay secure under rotation and impact, while still being easy to remove.
Example Products:
- 1" x 4-1/4" x 12" – 11 Degree Tapered Drill Stem – SKU: DS11T10212 – $83.11
- 1" x 4-1/4" x 24" – 11 Degree Tapered Drill Stem – SKU: DS11T10224 – $113.62
What Are Rock Bits?
Rock bits are used in conjunction with drill steel to bore holes into hard surfaces—typically concrete slabs, boulders, or reinforced material. They come in threaded versions for H-thread or rope-threaded stems and can be swapped out based on wear or desired hole diameter.
Champion Chisel supplies bits to fit:
- H-thread steel
- D-thread and Rope-thread
- 11-degree taper stems
Need help finding the right bit style for your stem or shank? Call 800-239-1434 for tool matching support.
Choosing the Right Tool: Selection Tips
When ordering from Champion Chisel's Drill Steel & Whirley Bits section, consider the following:
1. Drill Type Compatibility
Ensure your pneumatic or hydraulic drill matches the stem's shank and collar type. Common configurations include:
- 7/8" x 3-1/4" hex shank
- 1" x 4-1/4" hex shank
- H-thread connection
- 11-degree taper
2. Bit Application
- For dowel hole drilling in concrete slabs, choose Whirley Bits with the appropriate shank and carbide tip.
- For general-purpose rock or slab drilling, choose Drill Steel + Rock Bit combos.
3. Hole Size Requirements
Champion offers bits capable of producing holes from 1" diameter up to 1.5"+ depending on the system and bit type.
4. Length Needed
Select drill stems based on the drilling depth required. Champion offers stems as short as 9" and as long as 120". For custom lengths or availability on longer tools, contact sales directly.
Why Buy Drill Steel and Bits from Champion Chisel?
Champion Chisel Works has been a trusted supplier of demolition and drilling tools for decades. Here’s why professionals across industries rely on them:
- Made in the USA: All bits and steel are manufactured using American-grade alloy and carbide for maximum toughness.
- Job-Proven Durability: Every item is designed to hold up under high-frequency impact in construction and utility environments.
- Wide Selection: With multiple thread styles, bit types, and stem configurations, Champion offers everything from doweling bits to rock drilling setups.
- Expert Support: Unsure which steel or bit matches your equipment? Call 800-239-1434 and talk to real tool specialists.
Final Thoughts
If you're drilling into concrete or rock and need high-performance tooling, Champion Chisel Works offers one of the most complete and durable selections of Whirley Bits, drill steel, and rock bits available online. With both H-thread and tapered systems in stock, and carbide-tipped bits ready to ship, it’s your one-stop shop for heavy-duty drilling tools.
Explore the full collection: Drill Steel, Rock Bits & Whirley Bits
Have questions about compatibility or sizing?
Call 800-239-1434 or email sales@championchisel.com to get matched with the right tools for your job.