This is the professional range of drawing instruments made to the highest standards. Laser cut from perspex sheet and with engraved marking. 50cms makes this a very large set square.
The markings are engraved on the underside of the square. The marked edge is bevelled to the edge which sits flat on the working surface. The two unmarked sides have a raised inking edge on the reversed side of the square (ie the square has to be reversed so thjat the scale marking face downwards to use the inking edge.
Hypoteneuse is 57cm.
Shortside 29cm
Marked side 50cm (markings 1 - 48cm)
Weight 210g
Royal Mail Packet