Radius Rock Bits |
radius rock bits « home |
VIEW ALL ROCK BIT SIZES
The
Radius threaded rock bit has several innovative features that offer
contractors an even greater advantage in tough bores. There is a
Radius bit for all sizes of HDD rigs from 10K to 200K. Standard
API threads allow easy connection to both our popular patent pending
“Lock & Load” Sonde Housing and existing sonde housings on the
market.
A detailed look into a few of the design improvements:
Center Axis Cutting Design |
Reinforced secondary crown |
|
More tungsten carbide surface |
Recessed water ports |
|
![]() Rear Wear Pad As part of the unique cutting geometry of the Radius rock bit, the raised rear wear pad offers two primary features. Since the cutting action centers on the axis of the pipe, the raised pad keeps the cutting teeth perpetually “in the cut,” offering greater control and steering than older “chop and flop” style bolt on rock bits. Secondly, the carbide-studded pad further grinds the cuttings to a more “floatable” size resulting in easier spoil removal and a cleaner hole. The pad also keeps the main body of the bit away from the walls to help minimize premature wear. |
![]() Knock-out Holes An afterthought to most rock bit manufacturers, the Radius team listened to the contractors who were sick of pounding and knocking the &teeth out of the bit. To designers and manufacturers it seems easy: “Stick a pin in the hole and hammer out the tooth.” In the field, however, contractors know the teeth pockets are filled with debris, the tooth is broken and flared into the pocket and the 5” long knock out hole in most bits is full of debris. Yes, contractors are loud and Radius listens to them. There isn’t a knockout hole on any size Radius bit that is over an inch long, making it much easier to get the worn teeth out and the new ones in. A happy driller is less likely to grab a Radius employee by the throat on the job site. |
|
Radius Rock Bit – Sizes & Specs
| TRB-3000 3.0” Rock Bit 2” API-IF Pin Rigs under 20K Approx Hole Size 4-1/2” – 5” Teeth Part # P1002 – Pointed / Frac Tooth Teeth Part # P1003 – Domed / Grind Tooth |
![]() |
TRB-3500 3.5” Rock Bit 2-3/8” API-REG Pin Rigs 20K – 40K Approx Hole Size 5-1/2” – 6” Teeth Part # P1006 – Pointed / Frac Tooth Teeth Part # P1008 – Domed / Grind Tooth |
![]() |
| TRB-4500 4.5” Rock Bit 2-7/8” API-REG Pin Rigs 40K – 60K Approx Hole Size 6” – 7” Teeth Part # P1009 – Pointed / Frac Tooth |
![]() |
TRB-6000 6.5” Rock Bit 3-1/2” API-REG Pin Rigs 60K – 100K Approx Hole Size Size 8”-9” Teeth Part # P1004 – Pointed / Frac Tooth |
![]() |
| TRB-8500 8.0” Rock Bit 4-1/2” API-REG Pin Rigs 100K – 200K Approx Hole Size 10”- 12” Teeth Part # P1005 – Pointed / Frac Tooth |
![]() |
Blade adapt Available for all size housing and bolt patterns |
![]() |
The BIG Rigs Noticed

The end-load housing is the head of choice among large HDD rig operators. The accessibility to sonde was less of an issue on long bores; trying to dig their transmitters out of the complicated end-load unit was a costly hassle. The Radius team again went to work on a solution. The result was the RADIUS MAXIMUS® line of tooling: oversized bits and housings just for the big HDD rigs. The easy access to the sonde and the protection of the lock and load design are a hit when introduced to the crews. Standard thread and high flow capacity allows the use of motors, hole openers, wire-line sondes and the RADIUS MAXIUMS® rock bit in areas where motors are just not required.











