Page 111 - orthodontic lecture reivew

1 inch = 25.4 mm

= 2.54 cm

70 gr 99 gr 127 gr 170 gr 184 gr
Diameter in mm

1/8 × 25.4 = 3.17 mm

3/16 × 25.4 = 4. 76 mm

1/4 × 25.4 = 6.35 mm

5/16 × 25.4 = 7.93 mm

3/8 × 25.4 = 9.52 mm