Drafting instruments
Drawing board
D0 (1500 X 1000 X25)
D1
D2
D3
Drawing sheets
A0 (841 X1189)
A1 (594 X841)
A2 (420X 594)
A3 (297 X 420)
A4 (210 X 297)
Main topic
Drawing pencils
Hard
4H
5H
6H
7H
Medium
3H
2H
H
F
HB
B
Soft
2B
3B
4B
5B
6B
7B
Drafting Tools
Mini dratfter
T square
Main topic
Dimensioning types
Chain dimension
Parallel dimension
Superimposed dimension
Combined Dimension
Elements of Dimensioning
Projection line
Dimension line
Leader line
Dimension
Drawing lines
Continuous line
Dashed line
Dotted line
Dashed space line
Long dashed dot line