Fitur : - Pengukur sudut akurat sampai 1 derajat , cepat dan gampang pemakaiannya, lengkap dengan busur 180 derajat dan penggaris 10 cm. - Berguna untuk mengukur sudut produk bubut, milling , bending, cutting , plate tekuk , dll.
Instruction: - ZERO : loose screw and to turn handle ruler , then keep the handle ruler in the same level as the bottom of main plate . start line must be on 0 position. the way you can revise the protractor whether it is accurate or not. - Measuring Angle : loose screw, the subject put on bottomof main plate handle ruler match to it , close the screw. after reading base line position on main plate. - Measure width : 0-30cm metric system on the bottom of main plate. Base line put on 90 position , the subject match to handle ruler , bottom of main plate. - Measure depth : handle ruler put on the cave or match the subject. - Draw line : Loose screw , handle ruler adjust correct angle you would like , fix screw. Then you can draw lines on it.