Protractor No.15 - PRT-15 / Protractor No.19 (No.19 Graduation on blade) - PRT-19 / Protractor No.19 (No.19 with two blades) - PRT-195W / Protractor No.19 (Satin Finish) - PRT-195
Protractor No.30 - PRT-305 / Protractor No.101 - PRT-1015
Protractor No.300 / No.400 / No.600 / No.100
PRT-3005 / PRT-4005 / PRT-6005 / PRT-1000S / PRT-300SW / PRT-400SW / PRT-600SW / PRT-1000SW