RSUMX Reaming Shell

Boart Longyear (www.BoartLongyear.com • ASX: BLY), the world’s leading integrated exploration drilling services, equipment and performance tooling provider, delivers the new RSUMX™ reaming shell to achieve straighter boreholes while maximizing the number of meters drilled. The RSUMX is designed to last longer than other leading reaming shells currently on the market. Large thermally stable diamond (TSD) pins are on the leading edge of the RSUMX to maximize diamond volume in high wear zones. The RSUMX also features an increase of 40 percent in active pad surface area and a new patent-pending impregnated diamond matrix that is three times harder than previous reaming shells. “Boart Longyear is striving for wireline tripping efficiency with our UMX™ products,” said Chris Lambert, global product manager for Boart Longyear. “The best way to increase efficiency is to produce drilling products that can achieve more meters and stay in the borehole longer. By using the RSUMX, drilling contractors can become more productive by staying on target and keeping the hole to size.” The incorporation of the new matrix into the RSUMX provides improved strength and bonding. A ground outer diameter and the use of only 25/35 synthetic diamonds further enhance wear resistance, maximizing the life span of the RSUMX reaming shell. The qualities of the RSUMX offer superior directional control by stabilizing the bit in the borehole while also increasing wear resistance — which in turn decreases cost per meter. This has a positive effect on the productivity of drilling contractors. Offered in reaming shell (R), and oversized (OS) sizes, the RSUMX is available in dual pad or stabilized 10” shell for better directional control. To learn more about the RSUMX, visit www.boartlongyear.com/rsumx.

About Boart Longyear

With over 120 years of expertise, Boart Longyear is the world’s leading provider of drilling services, drilling equipment, and performance tooling for mining and drilling companies globally. It also has a substantial presence in energy, mine de-watering, oil sands exploration, and production drilling. Boart Longyear is a global company headquartered in Salt Lake City, Utah, USA, and is listed on the Australian Securities Exchange in Sydney, Australia. Sales in 2012 were over US $2 billion, and the company employs approximately 8,500 employees worldwide. Contract drilling services are conducted in over 40 countries, and drilling products are manufactured in six global factories and sold to our customers in the 100+ countries where they operate. More information about Boart Longyear can be found on the Internet at www.boartlongyear.com.