505-0295
HDD Bits · 8 SKUs
Hellcat Series
Premium steep taper bits for hard ground conditions
The Hellcat is a premium steep-taper pilot bit built for the ground that eats ordinary carbide in a shift. It carries more mass than a standard pilot bit, a tighter carbide-button pattern across the face, and a hardfacing package that stands up to abrasive sandstone and weathered rock without losing its cutting angles in 200 feet.
Drillworx stocks Hellcats in both Vermeer and Ditch Witch patterns. The body is the same premium casting; only the bolt interface changes. Contractors working through cemented gravel, hard shale, or intermittent bedrock choose the Hellcat when a roller-cone or DTH hammer setup is overkill but a standard pilot bit would only survive a single pass.
Hellcats are a higher-dollar bit. Their economics work when replacement cost-per-foot is lower than running three ordinary bits through the same ground, which is typical in the conditions they were designed for.
Field guidance
When to use hellcat series
Cemented gravels and hard till
Steep-taper mass plus full carbide coverage shears through caliche and cemented layers without building up on the face.
Shale and sandstone transitions
When ground changes within a bore, the Hellcat keeps cutting angles in both materials without pulling short to swap geometries.
Long, abrasive bores
Extended carbide life makes the Hellcat the right call on 500+ ft bores through abrasive ground where swapping bits mid-pass is not practical.
Weathered bedrock
For formations just shy of what would justify a DTH hammer, the Hellcat is typically the last pilot-bit option before hammer tooling.
Compatibility
Fitment & sizing
- Bolt patterns
- Vermeer 6/7-bolt; Ditch Witch 5-hole and 6-hole
- Common sizes
- 4" – 6.5" OD
- Hardfacing
- Full-face Stelcar carbide rope + gauge protection
- Class
- Premium — hard-ground pilot bit
8 products
505-0296
BIT,HDD 6 HELLCAT STEEP TAPER VERMEER 7 HOLE DH-06-P7-60-HCS
505-0325
HDD Bits
505-0325
BIT,HDD 4 HELLCAT STEEP TAPER VERMEER 7 HOLE DH-06-P7-40-HCS
505-0326
BIT,HDD 5 HELLCAT STEEP TAPER VERMEER 7 HOLE DH-06-P7-50-HCS
505-0329
HDD Bits
505-0329
BIT,HDD 5 HELLCAT STEEP TAPER VERMEER 7 HOLE DH-06-P7-50-HCS-S W/ ADDITIONAL HARDFACING ON TAILING EDGE
505-0369
HDD Bits
505-0369
BIT,HDD 6 HELLCAT STEEP TAPER DITCH WITCH 6 HOLE 20MM DH-08-P6A-60-HCS
505-9222
HDD Bits
505-9222
BIT,HDD 4" 5-HOLE DITCH WITCH-12MM HELLCAT STEEP TAPER DH-06-P5-40-HCS
505-9223
HDD Bits
505-9223
BIT,HDD 5" 5-HOLE DITCH WITCH-12MM HELLCAT STEEP TAPER DH-06-P5-50-HCS
FAQ
Hellcat Series — common questions
In abrasive or cemented ground with high quartz content, the Hellcat typically drills 2-3x the footage before carbide wear forces a replacement. In soft clay or plastic soils, a standard pilot bit is cheaper and faster — the Hellcat profile is too much bit for the ground.
No. A Hellcat drills hard ground with rotation and downforce; a DTH or HDD rock hammer percussively fractures solid rock. If ROP with a Hellcat drops below 10-15 ft per hour in real bedrock, step to hammer tooling. See the DTH Hammers section for matched bits and subs.
Yes — Drillworx offers carbide-cutter and button replacement on the Hellcat body. Send us the bit and we'll quote a rebuild versus a fresh bit; in most cases a rebuild runs a fraction of new-bit cost with equivalent service life.
Don't see what you need?
Our team maintains inventory across 8 locations. Send us your spec and we'll confirm availability the same day.