You have the power to revitalize your underground hard rock mining drilling and bolting operations when it’s time for drill rig repair and maintenance by just retrofitting some of the vital components. Komatsu offers four retrofit solutions compatible with every major OEM: Montabert hydraulic rock drill drifters, Timberock feeds and bolting heads, and an innovative J-LOK P pumpable resin injection system. Choose any or all based on application and need.