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Anyone got any experience of these? Thinking might be useful holding pipes while brazing etc.

I got some pliers the exact same shape but with black crackle finish paint on the handles when my local too shop was closing down, they were marked made in the GDR, Think the name is Smalcalda but difficult to read.

Make one form a box spanner and an old socket, brazed or welded together.

Have heard of fan blades being porous, water gets into the porous bit in rainy weather and throws it off balance.

Factory charge should be marked on the outdoor unit. The factory charge will cover it for X amount of line set, info on that should be in the install manual, any extra for longer line sets should be calculated with the info in the install manual.

Its easier to keep the blade square to the screw with a longer shafted screwdriver.

Just checked and mine are the same, the 21mm socket has a different design of plastic insert to the smaller sockets.

Koken make them in 8 point form.

Rothenberger (though quality going bad due to china). Hilmor, Rems. I have some older Imperial ones which are good but newer ones I've had cut spirals and had one where I kept cutting myself as the chrome flaked off.

Got some yellow dog grooming mat offcuts cheap for my Hazet assistent cart. Found them on ebay.

Propylene/Mapp pro gives a bit more heat than propane, its what I mainly use now for brazing copper hvac lines.

Around 4ft, had all the extensions I have joined up so I could reach a compressor service valve to torque the mounting bolts. Wasn't enough room inside the machine to swing the torque wrench.

Haha! That's exactly the same screw head I had trouble with yesterday, and that was a Hanning motor too.

Would need a socket a bit like this Snapon shock absorber one but smaller and narrower. https://www.ebay.co.uk/itm/Snap-On-Tools-3-8-Drive-1-4-Oval-Shock-Absorber-Specialty-Chrome-Socket-A137/392128514875?epid=1523314455&hash=item5b4cae4b3b:g:gnEAAOSwa5lbpWS~

Had to strip a replacement pump motor yesterday to rotate the pump so the delivery pipe lined up with the one it was replacing. The motor end bells were held on with four long bolts about 4mm diameter, the problem in undoing them was the heads instead of having a female slot for a screwdriver...

Irega are very good imo. Also have a Facom monkey wrench which comes in useful now and then. Japanese Fuller also very good.

Domestic air con doesn't need the oil changing. Its only huge commercial systems that have oil change intervals. Only time you'd want to change the oil is if the system had severe moisture etc contamination or you wanted to change from mineral oil to synthetic due to changing the refrigerant type.

Do a lot of work on farms, previously have dropped my ratchet into a bucket of dairy chemicals and despite copious rinsing etc the internals were soon dissolved into rust. So standard wrenches are better for harsh environments in my experience. I have some ratcheting wrenches in specific sizes...

Depends what you work on and where, I work mobile so keep a couple of these style wrenches in my diagnostic bag, great for 7mm nuts on small fan motors, also useful for hose clamps. We have an agency for French made equipment, interestingly these style wrenches are depicted in their service...

Find these good for use in my veto tool bag, flexibility lets it sit across the bottom at the front then bend up one side...