Net weight 0.62kg
*A precision protractor verible to fit all angles,its acale can be read to the minimum of 5mm by use of a vernier,snd is magnified by an attached magnifyng lens to become more surely de read.
*Blade:150mm,300mm two

Net weight 0.51kg
*This type is also attached with a magnifying lens in the similay way to No.495 Model one.
*Its mininum reading is 5mm,and it is attached with an attachment for reading an acute angle.
*Blade:150mm,300mm two