Blue is Bosch’s professional line and green is its DIY line — different
machines, different service arrangements, different expectations. They are
separated on this site for the same reason Bosch separates them.
What we found writing the reviews
Two of the twelve publish almost nothing. The GCM 8 SJL mitre saw listing
carries a Bosch Professional part number, a price around €400 to €460, and no
blade diameter, no crosscut capacity and no motor rating. On a page where the
DeWalt DWS774 at €294 states all three, that is a real obstacle to recommending
it — and we have said so on its review.
One listing contradicts itself. The GKT 55 GCE set names a reciprocating saw
among its contents, which is not what the product is. Almost certainly a listing
error rather than a packing one, and still the sort of thing that ends in a
return.
Where it does publish, it publishes well. The GCM 305-254 D states its
capacity as a cross-section — 90 × 305 mm — rather than as two independent
numbers. That is the honest way to quote a mitre saw, and it is the only listing
on this site that does it.
Where it sits
The machines are good and the network behind them is real. On this site the
recommendation is usually to check what the listing actually tells you before
paying the premium, because in this category Bosch is competing against makers
who publish more.