Wh Rules




2 foot WH ruler.
1mm x 1.25" x 12.5"

1mm x 1.25" x 12.5"
1 foot of ruler equivalent to an old 2 foot.
Comes with tables for metal and band cuts.
Work with circles.
It comes with pre-set insulation measures. from .5" x 1" to 24" x 3", typically used with calcium silicate. Other types of insulation vary but can be adjusted.
Prefixed letters can be used to mark sheets and strips at the time of manufacture.
Comes with pipe cuts up to 42"+.
It comes with normal inches.
It comes with a 1" to 1/4" conversion to verify the pattern length is correct. This applies to patterns cut into 1/4 parts.