Powerful API Hole Openers

Hole openers allow the drilling of large bores even with a relatively low rig capacity, thus reducing drilling costs. By enlarging a pilot bore, they lower the torque on the drill string and assist in drilling a straighter hole. Manufactured from a single piece of full-length heat treated AISI 4145H steel, our hole opener withstands extreme force during drilling.

Main Specifications

StandardsAPI Spec 7-1
Steel gradeAISI 4145H, NonMag
Cutters3 types for soft, medium, and hard formations
Opening sizes12 1/4" - 36"