I need to mitre external corners in skirting 110mm height. Kitchens, doors, rails, stud, tables, chairs, stair cases, garden furniture etc... Find answers and ask questions here!

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Hello I need to mitre external corners in skirting 110mm height.
But cannot find a mitre block deep enough to do this.
can anyone recommend a block suitable for the skirting height thanks.
Yes they are actually 45d corners.