- DOWNHOLE DIRECTIONAL TOOLS. // Underground Construction;Mar2002, Vol. 57 Issue 3, p50
Introduces several downhole directional tools for underground construction. Impact Ring Bit System product line from Numa; Case Impeller line reamers from Case Construction Equipment; BICO Flex Drill series from BICO Drilling Tools; Vermeer D24x40A and D33x44 NAVIGATOR horizontal directional...
- EIL-Numa Systems Solves Difficult UK Rock Boring Problem. // Underground Construction;May2002, Vol. 57 Issue 5, p56
Evaluates a horizontal drilling system from Euro-Iseki and Numa. Significance of the drilling system to problems associated with rock boring; Design of the system; Details of its application in drilling projects.
- Down but not out. Price, Kate // International Construction;Jun2002, Vol. 41 Issue 5, p28
Features several construction equipment. Usability of Patriot 60 on difficult terrains from Numa; Features of compressor modules from Ingersoll-Rand; Description of ROC D7C drill rig from Atlas Copco.
- American hammers. // Mining & Quarry World;Jun2004, Vol. 1 Issue 2, p34
Features the down-hole-drill hammers and bits manufactured by U.S.-based company Numa for the mining and quarrying industries. Features and uses of the hammers.