HELP

[PlumberInTheMaking]

Hi,

I have bought these which were recommended by the store assistant and he said they should work, but we cant work out how to fix them all together and came with no instructions.

Bosch Powerchange SDS Plus Holesaw Arbor
http://www.screwfix.com/p/bosch-powerchange-sds-plus-holesaw-arbor/66724

Erbauer Bi-Metal Holesaw 70mm
http://www.screwfix.com/p/erbauer-bi-metal-holesaw-70mm/80934

 

[footprints]

My guess would be you need an adaptor for non Bosch saws.
This shows a bosch one with the arbour and it has a fitting on the back that looks like it snaps into the arbour. I suspect you pull back the collar like flipdrivers and quick change drills.

http://www.screwfix.com/p/bosch-progressor-holesaw-79mm/92640

 

[RF Lighting]

You need to take that arbour back and change it for this one:
http://www.screwfix.com/p/quick-hitch-holesaw-arbor-11mm/12437


The one they have sold you only fits bosch holesaws which are horrendously over priced, and the arbor ceases up and doesn't latch on to the hole saws properly once it gets a bit of dust in it. You'll end up chucking it in the bin and putting it down to experience like I did with mine.

If you want a quick release system then have a look at reload arbors. I've had mine for years and it really is a good quality bit of kit.
http://www.reloadtools.com/main.htm?pro.htm