Rated 1 out of 5Â by screwyg not worth buying
This will not measure external angles!!
This is not an accurate gauge!!!
On the one I had the metal had not been fully fettled, meaning it could not fit into a corner with accuracy. At 90 degrees it was accurate to scale but at 45 degrees it was way out.
Buy a reasonable quality angle bevel and protractor, less chance of damage, more accurate and will measure external angles.
I gave this product 1 star throughout as it simply does not do the job.
Screwfix have refunded with their usual courtesy.
18 Oct 2015
Rated 4 out of 5Â by Acornis Handy bit of kit
Saw this when I was looking for a speed square, seems well made and sturdy. It is designed to be used on internal corners but with a bit of working out it could be used on external too.
Easy to read and to transfer the setting to mitre saw.
7 Aug 2015
Rated 3 out of 5Â by JonTheJoiner Good concept, poor calibration
This is a good tool but, as stated by other reviewers, the scale is not accurate. This means that you either have to set you saw directly from the tool, or you have to measure the angle with a protractor to use the saw's scale.
If you want to calculate for compound mitres then you have no choice but to measure the angle from the divisor using a protractor.
It's a real shame because it costs no more to make a tool that's accurate, it's just a lack of rigour in design and production.
16 Oct 2014
Rated 5 out of 5Â by ClooneyClone What a time saver!
Just fitted a large flat with trunking for 6 smoke alarms using this in combination with a cheap bevel gauge and chop saw. Beautiful, spot-on mitres every time. It saved me hours of inaccurate fiddling with mitre blocks when everyone knows that buildings never have exact right angle corners.
Yes, as an earlier reviewer stated, the numeric angle read-out is wrong but that doesn't matter if you don't need to know the number of degrees, just the position of the half-angle to set your chop saw. Love this gadget.
12 Jul 2014