Excel 60020 90 degree 4" Machine Square Missouri Pacific MP 1 Barrel w/Trash on Top

1 Barrel w/Trash on Top

Woodland Scenics ST14406B Sub Terrain

5" Curve Track (29)

2/pkg - 3"

1 Long Decorative Trim w/ Facia Board

Excel 60020 90 degree 4" Machine Square Missouri Pacific MP 1 Barrel w/Trash on TopExcel 60020 90 degree 4" Machine Square A machinist square, also known as an engineer's square, is a measuring tool used in the field of metalworking and mechanical engineering. Used by machinists, engineers and metalworkers in several industries. Uses include checking the perpendicularity of surfaces, setting up and aligning machine tools, checking the accuracy of workpieces during machining, and marking or scribing lines at a precise right angle.