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boiler sight glass

john_126 Member Posts: 4
Thanks for the suggestions. I ended up scoring it with a wheel glass cutter and then worked the corner of a file around the score groove and it broke off cleanly.


  • john_126
    john_126 Member Posts: 4
    cutting guageglass

    can anybody tell me the best way to cut guage glass to size? Thanks for the help.
  • Chris_82
    Chris_82 Member Posts: 321
    sight glass

    Score it deeply with a file and then with luck? Actually there is a sight glass cutter, looks like a hair curler, or similar thing, I used to own one, and I'm sorry but I havent a clue where to get one these days, I do remember some wholesalers having them and some of the boiler manufacturers will custom cut one for you, good luck.
  • brucewo1b
    brucewo1b Member Posts: 638

    I use one of these but a three sided file and score all the way around as deep as you can I still loose one once in a while. With the wheel cutter I put in the gauge glass and light pressure on the handles and keep rotating the glass until it breaks.

  • Ken D.
    Ken D. Member Posts: 836
    Sight Glass

    I got mine from Sid Harvey's. I'm sure they still have them available. I would think any plumbing or heating supply house should have them. I would not even try Home Depot or Lowe's. Unless they can sell a million of them a week, they won't stock them. Unless, or course they get their usual quality where they break after you use them twice and have to buy a new tool, then the volume would be sufficient. I have also used an electrode porcelain cutter, although they are not as easy.
  • J.C.A._3
    J.C.A._3 Member Posts: 2,981
    I too....

    Learned to cut gauge glasses to lenth with a prcelean electrode cutter. It looks like a miniature cast iron snapping tool but works great. It does take "the touch", but after the first 40 or so...it becomes easy. (only 1 real bleeding incident on my part). Chris
  • Leo
    Leo Member Posts: 770
    My favorite

    My favorite is a two piece tool that is hindged, once or twice around the glass then take the glass and snap it, done.

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