National Grinding Wheel Company,inc. Of North Tonawanda, New York.__guide

US $1600

  • Bay Village, Ohio, United States
  • Jun 10th
NATIONAL GRINDING WHEEL CO.,INC. OF NORTH TONAWANDA, NEW YORK.   THIS ITEM IS A SPEED CALCULATOR FOR GRINDING WHEELS USAGE.  RECOMMENDED WHEEL SPEEDS IN SURFACE FEET, PER MINUTE__R.P.M.__ DIAMETER OF WHEEL TO CALCULATE.    MAXIMUM PERIPHERAL SPEEDS.  SET DIAL AT SURFACE SPEED-FT./MIN, THEN DIAMETER OF WHEEL IN INCH'S.   SIZE IS 4 5/8"  OUTER RING, 3", WITH ROTATING RING BEING 2 5/16".     THIS USEFUL TOOL IS FROM THE 1950'S.   IN GOOD CONDITION / VERY GOOD CONDITION CONSIDERING IT'S AGE. WILL MAIL FIRST CLASS POSTAGE WITH TRACKING FOR $2.87 THANKS FOR LOOKING

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