10 JULY 2023 WorldWide Drilling Resource® Nitrate Coated Premium Liners 5x6, 5x8, & 5x10 Gardner Denver 5-1/2x8 & 5-1/2x10 Gardner Denver 7-1/2x8 & 7-1/2x10 Gardner Denver Rods Heat-Treated & Chromed 5x6, 5x8, & 5-1/2x8 Gardner Denver 5x10 & 5-1/2x10 Gardner Denver 7-1/2x8 & 7-1/2x10 Gardner Denver New Pumps In Stock Gardner Denver 4x5 TEE Triplex. Gardner Denver 5-1/2x5 TEE Triplex Gardner Denver 4x5 or 4-1/2x5 Duplex Gardner Denver 5x6 Duplex Gardner Denver 5x6 Air Drive Duplex Gardner Denver 5x8 Duplex Gardner Denver 5-1/2x8 Duplex Gardner Denver 7-1/2x8 Duplex Gardner Denver 7-1/2x10 Duplex Gardner Denver 5-1/2x5 THE Triplex Gardner Denver 5x8 PAH Triplex Call for Prices. We Have a Variety of Brands of Mud Pump Parts and Power Units in Stock. Special or Obsolete Parts Made to Order. Cash for Surplus Mud Pumps. Rebuilt Mud Pumps 4-1/2x6 Gaso Duplex 4-1/2x6 Oilwell Duplex Gardner Denver 4-1/2x8 PA-8 Triplex Gardner Denver 5x6 Duplex Gardner Denver 5x10 Duplex Gaso 5x10 Duplex OVER 300 PUMPS IN STOCK Armstrong Machine Co. Inc. Pocahontas, IA 50574 USA 712-335-4131 ~ 24 Hours 7 Days a Week • Fax: 712-335-4565 800-831-4527 USA & Canada (8AM to 4PM Monday-Friday) armstrongmachine.com amci@armstrongmachine.com Hydraulic Grout Pumps 5”, 6”, & 7-1/2” New Underreamer System for Greater Drilling Depths Adapted from Information by Mitsubishi Rock Tools Mitsubishi has been in the mining industry since 1871, when Tsukumo Shokai leased a coal mine from the Shingu clan in Kishu, Japan. From 1871 to today, Mitsubishi has made many advancements in mining and drilling technologies. Most notably are their casing advancement underreamer systems and down-the-hole (DTH) tools. In 1992, Mitsubishi Rock Tools developed the Super Max Bit “SMB” underreamer casing advancement system. The SMB has carbide buttons solely on large bit heads that rotate out when the drill string is turned to the right. In 2003, the company redesigned it and started manufacturing its SMB-G model underreamer system. The SMB-G model system is the original wing bit system and has carbide buttons incorporated into the guide device body. Instead of large bit heads, it has smaller bit wings. The redesign has allowed companies to complete drilling projects to greater depths and through harder formations than the original SMB system. Although many other manufacturers have tried to duplicate the company’s wing bit, NO ONE comes close to the quality and service provided by Mitsubishi. In 2018, just before the COVID nightmare, Mitsubishi started manufacturing MD DTH hammers and bits right here in the USA with American steel. The company currently manufactures 3.5-inch all the way up to 8-inch hammers and 4- to 12-inch bits. Their hammer cases are reversable and the 5-inch and larger hammers all have back out buttons on the top sub. Fast forward to 2023, and Mitsubishi Rock Tools is proud to announce the development of a new wing bit underreamer system. The New Max Bit or NMB-G for short, incorporates a completely redesigned guide device, more robust bit wings, bigger retaining pins, and larger diameter bit wing shanks. Their NMB-G is up to 40% stronger than the SMB-G device and will allow for even greater drilling depths than earlier underreamer models. But wait, there’s more! Not only will the NMB-G be stronger than before, but the prices will be the same as the previous SMB-G model. Stronger tools for better drilling without a price hike, who does that? Mitsubishi Rock Tools does! Reach out to your drill tool distributor for more information on any of Mitsubishi’s casing advancement or DTH tools. MIN
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