Best way to get a clean cut on a wire reinforced hose?

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,074
CAL 35 Cruiser #21 moored EVERETT WA
During the install of my exhaust hose, the mechanic and I used a sharp serrated knife on the hose and wire dikes to snip the imbedded wire.
 
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jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,074
CAL 35 Cruiser #21 moored EVERETT WA
angle grinder
That could develop a foul smelling smoke as it burns its way through the hose. Perfect is not needed. The hose generally fits over a long pipe tail. Plenty of room for double hose clamps.
 
Nov 6, 2006
9,995
Hunter 34 Mandeville Louisiana
A box knife and some good wire cutters .. The wire is really hard stuff.. I reckon a small angle grinder may work better on the wire than wire cutters.. but as John says the rubber would not be fun to do with a grinder.
 

Ward H

.
Nov 7, 2011
3,750
Catalina 30 Mk II Cedar Creek, Bayville NJ
I use a box cutter type knife to hack saw to cut the rubber, then I use a Dremel with a cutting blade to cut the wire just under the surface of the cut rubber.
 
Oct 13, 2020
155
catalina C-22 4980 channel islands CA
I found this video when I was replacing my sanitation hoses. The key is the pair of cutters that he uses, although Ward H’s method using a dremel tool is very similar. It worked great straight cuts and no sharp edges
Dano
 
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Jan 4, 2006
6,950
Hunter 310 West Vancouver, B.C.
Maybe I'm living in the Stone Age because the only tool I use is a hacksaw with 32 TPI (teeth per inch) blade. Produces a smooth cut with the wire nicely laying down into the rubber. Any lower TPI and it looks like a saber tooth tiger chewed the end off.

I think this may be the problem with others who have cursed the hack saw. Only a fresh blade with 32 TPI produces a flawless cut. Start cutting between two wires on top of the hose so that the single wire is near a solid surface on the bottom (doesn't wiggle) when it's being cut.
 
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