patent, have made Solid Emery Wheels, Diamond Tools, and Improved these drills more fully adaptable to every variety of ROCK DRILLING. Tneir “unequalled e cieney vend Lathe Dogs. Address AMERICAN TWIST DRILL COM- ‘| | W ‘9 Europe. The Drills are ailt of various sizes and pat- LL | T OL R economy… … EMERY GRINDER, This Machine runs Wheels from 14 to 24 inches diameter. For Gas, STEAM, WATER AND OIL. pA TENT SAFETY HAS LEGS SO AS TO STAND ON FLOOR. Steam Engine Governors and €oal Gas Works, &c. &c. Wheels extra. Address witn Overhead Work, $110. Water Gauges. NO. 15 GOLD ST., NEW YORK. THE…
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