CSUMX Casing Shoes

SALT LAKE CITY — March 5, 2013 — Boart Longyear (www.BoartLongyear.com • ASX: BLY), the world’s leading integrated exploration drilling services, equipment and performance tooling provider, has released the CSUMX™ casing shoe, designed for exploration and geo-technical applications. The CSUMX has the ability to drill faster and outlast existing casing shoes in a wide range of ground formations.The CSUMX is ideal for drilling contractors seeking a high performance, cost-effective alternative to their current casing shoe selection. The CSUMX has the ability to cut through various ground formations ranging from 1 to 9 on the Mohs hardness scale.“The Boart Longyear patented technology enables the CSUMX to be highly versatile, cutting both soft overburden and hard bedrock with a high penetration rate,” said Chris Lambert, global product manager for Boart Longyear. “By incorporating the Ultramatrix™ (UMX™) formula we are able to offer the CSUMX with benefits unavailable in more expensive casing shoes at a fraction of their cost.”Casing shoes are used to drill through overburden until bedrock is reached. Many times the overburden consists of unconsolidated ground filled with till, leading to encounters with rock of varying hardness. The CSUMX allows the drillers to stick with one casing shoe, instead of changing the shoe when a difficult formation is met.Featuring the Boart Longyear award-winning and patented UMX metallurgical formula, the CSUMX is designed to stay sharp through the innovative crown matrix, which wears slowly during drilling to expose new, large synthetic diamonds. This allows the driller to maximize the life of the casing shoe while achieving maximum depth.The CSUMX also features the unique Razorcut™ design, which allows for the casing shoe to begin cutting right out of the box, even in overburden. The design also improves tracking and balance in the hole.The Twin-Taper™ waterways dramatically improve surface flushing to keep the face of the casing shoe clear and to reinforce the inner diameter.To learn more about the CSUMX, visit www.boartlongyear.com/csumx.

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