Erbauer Bi-Metal Holesaw 35mm
Very useful item
I wanted to fit some cabinet hinges which needed a 35mm hole drilling in the doors. I found that my kit of hole saws didn't contain this size, so I nipped down to Screwfix for this one. I had to pack the mandrel with washers to prevent the pilot drill breaking through the other side of the wood and, having done this, I had the holes drilled and the middles chipped out in no time at all. Took longer to set up than to complete. This hole saw performed extremely well and was excellent value for money.
4 Feb 2015
Why pay more
Just cut 20 holes in 5mm black mild steel and only lost one tooth on this cutter, Iï¿½ï¿½ï¿½d say it would cut another 10 or more before it's done. I have been using this type of cutter professionally for over 25 years and this is as good quality as any of the top brands.
Remember though like any cutter you need to look after the teeth, as the pilot drill brakes through don't let the cutter drop onto the work - guide it slowly under control otherwise you will both bend the pilot drill and brake teeth, make sure you don't have too high a cutting speed- swarf turning blue means you are cutting at too high a speed, also use a cutting oil or coolant will prolong the life and help keep the teeth cool. This type of cutter is really meant for metal although you can cut wood etc but don't expect the edge to last if you cut plasterboard and it will go blunt within seconds on brick or other ceramics.
24 Aug 2014