Downhole Innovations, Made in France HOME DRILLSTAR OIL AND GAS SUBCONTRACTING NEWS & MEDIA CONTACT AERONAUTICS PRECISION MANUFACTURING FOR THE AERONAUTIC INDUSTRY Over the last 25 years, Drillstar Industries has built up a machine shop capable of handling and machining large-size metal parts out of steel, aluminium, titanium, inconel, etc. This equipment enables us to supply critical parts to major European aircraft manufacturers, meeting the highest quality requirements Turning, milling, surface grinding, welding and tool repair operations can be performed in-house, using our range of recent CNC machines. In addition our company also offers a broader range of services that includes integration capabilities, testing and turnkey supply of complete sets or subsets of industrial equipment. Our partners and customers benefit from our high level of machining expertise in the manufacture of aeronautics parts. Subcontracting Aeronautics Textile Other sectors DRILLSTAR INDUSTRIES Av. Joliot Curie - BP 30061 - 64148 LONS INDUSPAL Cedex - France Phone: +33 (0) 559 130 100 Fax: +33 (0) 559 621 993 E-Mail: sales@drillstar.fr Web: www.drillstar-industries.com Site map Home DRILLSTAR Oil and gas Subcontracting News & Events Contact Site map Artzainak Group Aérodif Armax Artzainak Asma Drillstar EBL Edams Emeca Lagarde © Copyright 2021 DRILLSTAR Mentions Légales

Downhole Innovations, Made in France HOME DRILLSTAR OIL AND GAS SUBCONTRACTING NEWS & MEDIA CONTACT HOLE OPENER PDF info sheet FULLY FIELD MAINTAINABLE AND INTRINSICALLY SAFE DESIGN Drillstar hole openers are used worldwide by major drilling contractors. Their robustness and durability ensure safe operations while minimizing maintenance and rig costs. They are manufactured with the number of cutters adapted to the work required. All our hole openers are field maintainable, with easy assembly and disassembly. They are all equipped with 3 or 4 cutters, as well as mud nozzles carefully positionned to clean the cutters and the hole simultaneously. STANDARD DIMENSIONS Type Hole Size Pilot Hole OD Upper Connection API Reg. Thread UP OF Lower Connection Nr. of arms LC 4505000850 8 1/2” 5 3/4” 2 – 3 6 1/2” 4 1/2” 3 1/2” 4505000950 9 1/2” 6 3/4” 2 – 3 8” 6 5/8” 3 1/2” 4505001225 12 1/4” 8 1/2” 2 – 3 8” 6 5/8” 4 1/2” 4505001475 14 3/4” 9 5/8” 3 8” 6 5/8” 6 5/8” 4505001750 17 1/2” 12 1/4” 3 9 1/2” 7 5/8” 6 5/8” 4505002300 23” 17 1/2” 3 9 1/2 - 10” 7 5/8” 7 5/8” 4505002600 26” 17 1/2" 3 9 1/2 - 10” 7 5/8” 7 5/8” 4505003600 36” 26” 3 - 4 10 - 11” 8 5/8” 7 5/8” 4505004200 42” 26” 4 11” 8 5/8” 7 5/8” Oil and gas Tubing and casing Drilling MUDHammer Z-Reamer X-Reamer Hole opener PDC hole opener Integral blade stabilizer Roller reamer Milling Fishing DRILLSTAR INDUSTRIES Av. Joliot Curie - BP 30061 - 64148 LONS INDUSPAL Cedex - France Phone: +33 (0) 559 130 100 Fax: +33 (0) 559 621 993 E-Mail: sales@drillstar.fr Web: www.drillstar-industries.com Site map Home DRILLSTAR Oil and gas Subcontracting News & Events Contact Site map Artzainak Group Aérodif Armax Artzainak Asma Drillstar EBL Edams Emeca Lagarde © Copyright 2021 DRILLSTAR Mentions Légales