Tip for cutting metal, thick or thin.

[Graham Orm]

Use a Reciprocating saw with a decent steel cutting blade.
Maybe you already use one, for those who have never had the chance they are an excellent bit of kit. I use one regularly at work for ripping out kitchens. The image they have is as a demolition tool, however, if you're careful they can be accurate and are always quick.

The cheapest mains version I found http://www.screwfix.com/p/erbauer-erb373rsp-1100w-reciprocating-saw-240v/80388

Or a mini cordless one http://www.screwfix.com/p/dewalt-dcs310s2-gb-mini-reciprocating-saw-10-8v/81367 Not sure what you'd be able to cut with a 10 volt cordless one though. Mine is a Makita mains powered.

I also use it for thick steel and thin (car bodywork type) steel. Just set your job up properly and it's much quicker and quieter than a grinder with no sparks. I've used one to cut a small RSJ before now.

What saw would you use for cutting floor boards before lifting them? A circular, then you catch a nail and the blade is wrecked. I lie the recip with a shortened blade almost flat, holding it carefully. I roll it so that the end of the blade starts to cut the board, it works it's way through quickly I then follow my line. If I hit a nail, it doesn't usually damage the blade, if it does, they are nowhere near as expensive as circular blades.

 

[Hutzul]

" I lie the recip with a shortened blade almost flat, holding it carefully. I roll it so that the end of the blade starts to cut the board, it works it's way through quickly I then follow my line. If I hit a nail, it doesn't usually damage the blade, if it does, they are nowhere near as expensive as circular blades"

I do the same but with a jigsaw, done it many times with no mishaps, just need patience.

 

[petermillard]

What saw would you use for cutting floor boards before lifting them..?

Multimaster - it's made for the job.

 

[Graham Orm]

What saw would you use for cutting floor boards before lifting them..?

Multimaster - it's made for the job.

Give over! You'd be there all day! I have a Bosch multi tool which is pretty much the same. Whilst I use it for trimming the bottom of architraves when floor tiling, and other awkward bits, it would take for ever to cut through a floor board let alone make a long cut across several.

 

[petermillard]

If it's taking you longer than a few minutes to crosscut a ~6x1 board using a multitool, you really need to get some new blades

 

[Phil Pascoe]

For floorboards, I use a jigsaw blade broken and reshaped, about 1/8" deeper than the board - no danger of hitting anything. Zigzag around any nails, and replace the boards in the same place.

 

[Graham Orm]

If it's taking you longer than a few minutes to crosscut a ~6x1 board using a multitool, you really need to get some new blades

Minutes yes, 10 seconds with a recip.!! :wink:

 

[Heath Robinson]

And when the recip blades are blunt, they make great marking knives/dovetail knives etc.