![](https://horizontaltech.com/wp-content/uploads/2019/10/Reamers_Hero_Image.jpg)
Viper RockReamers
The new Viper RockReamer is designed in part
to alleviate the epidemic of split-bit reamers
catastrophically losing cutters down hole. The
Viper provides added strength and the best
possible down-hole cutter security in addition
to longer hours, smoother rotation, and better
penetration rates.
V4: 4 – 1/2” Min. Pilot
![](http://horizontaltech.com/wp-content/uploads/2019/10/V4_Reamer.png)
Dimensions
![](https://horizontaltech.com/wp-content/uploads/2019/10/V4-Dimensions-Chart.png)
![](https://horizontaltech.com/wp-content/uploads/2019/10/Opening-Range-V4-1.png)
Opening Size & Suggested RPM
![](https://horizontaltech.com/wp-content/uploads/2019/10/V4-Suggested-RPM-1.png)