Cutting out rot in body panels - tool worth having???

[SierraV6]

Am I the only person on here who uses a multitool for this sort of thing? No sparks and gets right into awkward corners (usually).

 

[eddie49]

I do use multitools ( mains and 12v and 18v cordless ) but I find that the blades are coarse and they do not last long on steel. I have experimented with welding segments of 32 TPI hacksaw blade onto worn multitool blades.

 

[MCKDAVID]

I do use multitools ( mains and 12v and 18v cordless ) but I find that the blades are coarse and they do not last long on steel. I have experimented with welding segments of 32 TPI hacksaw blade onto worn multitool blades.

interesting, how did that work out?

I use them quite a lot, and find a huge difference in quality, been using bosch's own for a while now, they last ok, but they're expensive for what they are. Might have to try and weld some up and see how that goes too..

 

[eddie49]

interesting, how did that work out?

Not good, the segments cracked and fell off. Next time I will use bi-metal hacksaw blades, cut down to just the toothed part, then brazed to the worn multitool "carrier" blade, and the joint ground smooth.

 

[MCKDAVID]

Not good, the segments cracked and fell off. Next time I will use bi-metal hacksaw blades, cut down to just the toothed part, then brazed to the worn multitool "carrier" blade, and the joint ground smooth.

aye, I did wonder about the heat affecting the tempering of the blade. Maybe brazing or silver soldering would be more controllable. Anyway another "job" to add to the list... next time I've got set up for brazing I'll give it a go, there's a few tired ones in the box so, have some to try on... will report back when I get time.

 

[striker]

A good tip I saw on you tube was to cut new teeth on worn multi tool bi metal blades. I think they used files but I use a thin cutting disc, just cutting a series of slits. I only use mine on wood though.

 

[SierraV6]

I do use multitools ( mains and 12v and 18v cordless ) but I find that the blades are coarse and they do not last long on steel. I have experimented with welding segments of 32 TPI hacksaw blade onto worn multitool blades.

Apologies if this a stupid question, but do you use the proper blades?

For example:

HSS saw blade | FEIN U.K. Ltd.

Solid HSS saw blade with metal teeth for sheet metal up to approx. 1 mm. Also for plastics, fibreglass-reinforced plastic, wood, putty and copper/copper alloys. Outstanding cutting speed. Clean, thin cutting line. Segmented, ideal for working in corners and on edges without overcutting. Product...

fein.com

 

[eddie49]

do you use the proper blades?

My mains-powered one is a Fein Multimaster, but the original HSS blade is worn and I use cheapo Lidl blades.

 

[SierraV6]

My mains-powered one is a Fein Multimaster, but the original HSS blade is worn and I use cheapo Lidl blades.

I have a Fein as well they're great. The dedicated metal cutting blades are finer toothed and longer lasting than the standard blades (plus you can turn them). Worth trying if you're cutting bodywork and sheet metal.