Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
- Essential tool when you need to make hole in any soft material like polymers or soft wood.
- Especially good for rubber e.g. for extending hole in rubber gasket.
- Makes clean edges when used properly.
- Easy to use.
Very soft metal of cutting part makes it unusable for anything harder than pine wood. I damaged cutting edges slightly when cutting in thin aluminum can. Then I totally destroyed tip of the tool when tried to bore woodchip board: it was bent and it's absolutely impossible to straighten it back properly.
I'll definitely buy another one and try to do heat hardening of the tool before use to make the tool stronger.
You really need this tool if you often drill/extend holes in rubber or plastics: it is really handy for installations and adjustments. Don’t even try to use it for wood or metal or you’ll destroy the tool.
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