Thompson, CT USA - Numa, a leading designer and manufacturer of down hole hammers and bits, will be exhibiting at the 2002 National Ground Water Expo being held December 9-11 in Las Vegas, Nevada USA. Located in booth #0900, Numa will exhibit a full range of down hole hammers and bits which are perfectly suited for any rock drilling effort. Showcased at the show will be Numa’s latest technological breakthrough, the Patriot® hammer line as well the Super Jaws® Under Reaming Bit.

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Sure to generate a lot of attention will be Numa’s newly introduced Patriot® down hole hammer line, which provides unmatched penetration and durability for drilling in hard rock conditions. The Patriot® is unlike any other drill on the market today as it blows away the competition with its tremendous penetration rate, vastly simplified design and long hammer life. The entire product range will have a capacity to drill holes 3-1/2 to 48 inches (89 - 1219 mm) in diameter and is perfectly suited for water wells, caissons, tie-backs, exploration holes, pile/rock sockets, utility poles, tunneling under roads and any other ground water application.

Also on exhibit will be Numa’s expanded range of the Super Jaws® Under Reaming Bits. Capable of drilling holes from 5-7/8 to 48-9/16 inches (150 - 1245 mm) in diameter,

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Super Jaws® is a special under reaming wing bit design made for simultaneously setting casing while drilling in unconsolidated rock formations of boulders and loose strata. It has been widely accepted in the drilling industry as the most efficient means of installing casing due to its ability to deliver improved performance and faster penetration over many traditional casing methods. Over the years, the Super Jaws® Bit has become recognized around the world for its robust construction, ease of operation and overall efficiency. A significant cost savings benefit of the Super Jaws® Bit is that it does not require the use of replacement ring bits that remain down the hole when drilling is complete.

Numa is a major manufacturer of down hole hammers and bits for the international drilling industry. The company designs and builds down hole hammers and bits for drilling vertical and horizontal holes 3-1/2 to 48 inches (89 - 1219 mm) in diameter. The company is known worldwide for their Patriot® hammer line, which provides an unmatched combination of fast penetration rates and long hammer life.