When is a metric template?

Very good product whose reputation is more to do, but be aware that from the US, everything is in inches and fractions of inches. There are some good metric equivalents / Imperial on the template, but the screw sizes are in imperial sizes, which requires to make the frequent gymnastics between the two scales, fortunately many metric length for screws are made lengths from the imperial system (eg 38mm = 1.5 inch). To experiment on scrap to take the hand, not the hole, which is childish, but the match between the depth to drill and size of documents to be attached. For example, on battens 25mm, so 1 inch, the doc recommends screw 1 "1/2 while I find the 1" 1/4 is more suitable if I cross the assembly and these are the 0.4mm difference between 1 inch and 25mm that can explain the difference. So do your testing with a few bags accompanying the case and order the screws after! If you do not take the screws manufacturer must be taken if the flat heads countersunk heads will penetrate too deeply, you may also pass through the assembly or splitting the wood.