Incra has very clever measuring and layout tools that have been very favorably reviewed on Lumberjocks:
Incra T-rule very nice indeed
Every woodworker should have one of these.
They include a ruler, a T-rule, an edge rule, and a protractor. The first 3 come in 6", 12", and 18" lengths. Like all Incra items, low cost isn't one of their features, but like all Incra items, the costs are high but not outrageous.
The question is: what size or sizes to get. If two sizes are best, especially if one is the 18", is it best to just bite the bullet and get one of their master sets?
Incra T-rule very nice indeed
Every woodworker should have one of these.

They include a ruler, a T-rule, an edge rule, and a protractor. The first 3 come in 6", 12", and 18" lengths. Like all Incra items, low cost isn't one of their features, but like all Incra items, the costs are high but not outrageous.
The question is: what size or sizes to get. If two sizes are best, especially if one is the 18", is it best to just bite the bullet and get one of their master sets?
