Hand grinders for porting heads/manifolds

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1 total messages Started by Brian Tymchak Wed, 20 Nov 1985 20:48

#116

Author: Brian Tymchak
Date: Wed, 20 Nov 1985 20:48

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   I need some recommendations for a hand-held electric grinder
     which I will be using to port heads and manifolds.  
     
   Some basic specifications:
       * 15,000 - 22,000 rpm
       * Variable would be nice
       * Accept 1/4" grinding and polishing tools
       * Under a $100, preferably.

   Some initial thoughts:
       * Sears recently had one on sale, but was no-load speed
         of 26,000 rpm.  I've heard rumors that disks and wheels
         tend to part company at those speeds.
       * Black and Decker makes a box that sits between the power
         source and the grinder that can be used to vary speed.
         Question - Can this be used on other single-speed units?
       * I know air grinders are usually much more reliable but I
         need to minimize  1) cash flow and  2) storage space.

    I will summarize to the net if response warrants.

    Thanks in advance.
                                   Brian Tymchak
                                   AT&T NS, Columbus, OH

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