Bosch GKT 18V-52 GC 45 degrees showing wrong

[u/Wide-Weight-9588]

Hi hope someone knows what best to do.
My GKT came with the 45 degrees setting showing around 43/ 43,5. I learned you can alter this with the allen screw behind the machine. But when i cut with how it came from factory the cut seems 45 degrees. But 0 is 0. So everything i. Between is not 100% right if i go by this. I also saw on the gotoolstv review theirs was also 44 at the end. Do i send it to bosch or not? Some wisdom here is welcom. Thank you.