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INSTRUMENTS AND THEIR USE
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American Standard angle auxiliary view axis base bolts center line chart cone construction curve cutting plane cylinder detail drawings dimensions direction directrices distance Draw the top drawn edge view elements elevation auxiliary ellipse engineer's scales engineering equation Figure front view frontal plane generatrix geometry given graphical hole horizontal line hyperboloid illustrated integral curve isometric letters line of intersection located machine method minor diameter modulus nomograph normal view Note nuts object oblique projection oblique view parabolic paragraph parallel pencil perpendicular pictorial picture plane plane ABC plane director plotted position Prob projection radius reference plane right-side view rotation scale screw screw threads shaft shape shown in Fig shows side view sketch skew lines space specified square straight line strike and dip surface surface of revolution tangent thread tion tolerance top and front top view triangle true length values variable vector vertical width