Hole saw

[Leodbd]

Which he saw is best for cutting into a 600mm cast iron sewer I need 5 inch
cutter
Thanks

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[Iggy]

replying to Leodbd, Iggy wrote:
None, because you don't. You use proper fittings and sealing methods. Cast
Iron is very brittle and needs a quite deep stub to seal into (jute and molten
lead) or onto (rubber sleeve). Putting any lateral strain within a section of
pipe will result in a crack and that section will then be entirely useless.

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