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6" PRECISON MARKING PROTRACTOR INCRA
INCRA has reinvented the protractor by putting extra long guide slots at every
45 degree, 30 degree, 22.5 degree, 5 degree, 1 degree and 0.5 degree interval
to plot any angle with ease and absolute accuracy. If you take a few seconds
to remove the T-bar you will also have an excellent 6" rule with micro-fine
marking holes at every 1/32".