Adjustable Hole Cutter with Cowl
Very useful, clean and easy!
Although the 'instructions' supplied are very limited (to say the least!), it is very simple to assemble without them. (I only looked at them after I had put it together!) (DON'T ASSEMBLE IT LIKE IT SHOWS IN THE PICTURE ON THE WEBSITE! THE SPRING GOES ON THE OUTSIDE OF THE COWL!)
The cowl is mounted on, what appears to be, a good quality bearing which holds the main shaft perpendicular to the cutting surface. This allows for a comfortable cut without worrying about the entry angle, etc. but also means the cowl doesn't try to spin/turn, so doesn't mark the surface.
So far I have only used it to cut into a finished, painted, skimmed, plasterboard ceiling to flush mount downlighters (85mm hole) and custom install speakers (190mm hole).
My only small complaint is that the main bar that holds the cutting blades has a drilled dimple to centre it when tightened onto the drill shaft/spindle and this is not quite centred. so the, otherwise very useful, measurement markings on the bar are not quite accurate. However, this is a simple thing to overcome, especially as I would always check with a ruler anyway.
Overall a great bit of kit that does a good job AND that caught all the mess from cutting leaving virtually no clean up afterwards! (In a fully decorated and working kitchen) Result! :D
24 Apr 2014
Out of Control
When it cuts right it's OK but I find that one of the blades will drift no matter how tightly my pliers twist the lock.
The result is a randomly larger hole than was intended, I couldn't recommend anyone to use the one I got!
1 May 2013
Choose something else
After assembling the cutter and ensuring it was all tightened up I was ready to cut my first hole, looked at the info for my MDF cut and ensured the speed of the drill was correct. Started cutting and all was ok then just as the hole cut through the cutting blades both broke. Maybe ok for plasterboard but not recommended for anything else.
23 Apr 2013
Not up to the job
I bought this adjustable hole cutter to cut 3 holes in 12.5mm plasterboard.
The tool is heavy and the bearing in the cowl is large and my first impression was that the tool is very robust.
Assembly is very simple.
The first hole I wanted to cut was 60mm diameter. Once I'd set the blades using the graduated ruler, I measured the outside edges of the blades AND cut a practice hold in cardboard; the resulting hole was 3mm too small. A 5% error before we get started.
The cutting tips that came pre-fitted did not last long enough to make it through the first sheet of plasterboard. They quickly became blunt and then hot as they rubbed against the plasterboard, despite keeping the drill below a few hundred rpm as advised. The spare cutting tips lasted a little longer but started to go the same way so I had to cut the rest of the holes with a jigsaw. Given that I can't find spare blades anywhere, I've just thrown away Â£40.
It's a pricey tool to cut cardboard. I would not recommend this at all.
30 Mar 2013