3 ms·
It has more to do with manufacturing techniques. Screw heads are stamped. A cone shape, with all sloped sides, is easier to stamp reliably. Even the famed Rober
by sandworm101 3mo ago
It has more to do with manufacturing techniques. Screw heads are stamped. A cone shape, with all sloped sides, is easier to stamp reliably. Even the famed Robertson bits from canada have a slight slope for this reason.