Harman exhaust stub, impossible to drill for attaching stove adapter?

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SidecarFlip

Minister of Fire
The accepted method is three fasteners spaced 120 degrees from each other around the circumference of the connection, not one.
 
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SidecarFlip

Minister of Fire

cpetku

New Member
Dec 24, 2019
40
Clarkston MI
Remember, when sharpening anything that is hardened, getting the edge too hot results in loss of hardness. This results in a need to sharpen the tool more often or just an inability to hold an edge long enough to get through the material being worked. Tormek makes a nice set of tools to keep edges cool while sharpening , but it would be much cheaper to buy a new drill bit.
 

bholler

Chimney sweep
Staff member
Jan 14, 2014
25,564
central pa
Anything can happen, given the right circumstances. Those circumstances are rare however.
Relatively rare yes but it is pretty nasty when it happens so why not take the simple step of running a screw in? On little 3" stuff as long as the collar fits tight I generally only do one screw. And I usually silicone the adapter on but no silicone anywhere else. If the pipe has no gaskets I use millpac
 
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SidecarFlip

Minister of Fire
Remember, when sharpening anything that is hardened, getting the edge too hot results in loss of hardness. This results in a need to sharpen the tool more often or just an inability to hold an edge long enough to get through the material being worked. Tormek makes a nice set of tools to keep edges cool while sharpening , but it would be much cheaper to buy a new drill bit.
Why I have a container of water close by. If it turns purple, it's lost it's temper.
 
Jan 29, 2021
145
VA, east central
Remember, when sharpening anything that is hardened, getting the edge too hot results in loss of hardness. This results in a need to sharpen the tool more often or just an inability to hold an edge long enough to get through the material being worked. Tormek makes a nice set of tools to keep edges cool while sharpening , but it would be much cheaper to buy a new drill bit.
Slower speeds and cutting oil. :)