HAMMERHEAD ET21722 — ACTIVE HEAD PIERCING TOOLS ACTIVE HEAD® HammerHead® Active Head® piercing tools are specially designed to perform in adverse ground conditions. The reciprocating head design features a double-strike system that utilizes the initial impact force to increase production in difficult soils such as cobble, hard clay and hardpan. Active Head piercing tools are available in 2” (50 mm), 2 1/2” (65 mm) and 3” (75 mm) models. FEATURES REPLACEABLE HEAD The specially designed head / body retaining system and replaceable wear rings on the bit shaft and head promote longer life and sustained performance levels. INDUSTRY LEADING 2 YEAR WARRANTY Protect your investment with two year limited warranty protection on HammerHead Mole® piercing tools compared to just 90 days with the leading competitor. ORIGINAL CLAMPED REAR ANVIL Don't settle for imitations. This original and field tested design provides for fast and easy field maintenance, the hallmark of the entire HammerHead Mole piercing tool line. Provides 200% more clamp load and is the most secure and proven assembly available. STRIKER WEAR RINGS Wear rings eliminate metal to metal contact decreasing wear and offering a sustained level of performance. Made of a specially designed composite, these rings offer a very low coefficient of friction and have a higher abrasion resistance compared to Teflon® rings used in competitive tools. PATENTED DEBRIS FREE TAILCONE Designed to eliminate the introduction of debris into the tool body, increasing overall production and tool life. PATENTED POWER PORT® REVERSE This patented quarter-turn reverse feature pneumatically locks the tool into forward or reverse gear, preventing accidental direction change during the bore. The valve whip is designed to be flexible, preventing tool if a bore collapse occurs. Similar models may be shown in addition to the featured model. Equipment may be shown with options. Specifications are subject to change without prior notice.