Reliance drill grinding jig instructions

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Reliance drill grinding jig instructions

Home Forums Workshop Tools and Tooling Reliance drill grinding jig instructions

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  • #758620
    farmer_joe
    Participant
      @farmer_joe

      Hi all,

       

      does anyone have a copy of the instructions for a Reliance jig? I’ve looked about online but haven’t yielded anything.

       

      many thanks,

      joe

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      #758641
      Charles Lamont
      Participant
        @charleslamont71117

        Reliance Drill Grinding Jig 1Reliance Drill Grinding Jig 2

        Your wish is my command

         

        #758650
        farmer_joe
        Participant
          @farmer_joe

          Thanks Chris, much obliged!

          #758662
          Clive Foster
          Participant
            @clivefoster55965

            I have an electronic copies of two sets of instructions for the Reliance jig.

            One appears to be the same as that posted by Charles but the other has the operating details in the form of 12 photos with short captions. Same cover page..Only difference I can see in the actual instructions is in the specified drill projection from the front of the trough.

            The version Charles posted gives the standard projection as 3 times drill diameter.

            The photographic version says “push the drill forward until the centre of the first indent is aligned with the front of the trough”. Which is an obscure description but makes sense when you can see the picture. Basically half a turn of the helical lands. I imagine that for a standard helix drill the effective projection will be the same.

            PM me if you’d like a copy of the pictures, it’s a 1.4 Mb jpg so far too large for the forum. Not perfect but easy enough to follow. I’m told it prints OK.

            Clive

            #758669
            Chris Crew
            Participant
              @chriscrew66644

              I am puzzled as to why our Asian cousins have never reproduced this design of drill grinding jig which is far superior and simpler in operation than the ‘Picador’ type that they have copied.

              #758672
              Bill Phinn
              Participant
                @billphinn90025

                Chris, the one thing that I particularly don’t like about the Reliance as opposed to the Picador is that indexing of the rotation from one lip to the other is done purely by sighting the drill tip against a rather crude line on the jig: on the Picador, indexing is achieved via a physical stop, which, all things being equal, should produce better grind symmetry.

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