Steel Parallel are made from high quality steel. These steel parallels are available in hardened and precision ground finish.

1

Standard sizes and accuracy of Luthra Steel Parallel As per IS-4241:1967, Grade 1:

Sizes(mm)
LxBxH

     Accuracy in Microns um

Straightness                Parallelism

100 X 10 X 5 +/-1.25                             +/-1.25
150 X 50 X 25 +/- 2.5                             +/- 2.5
150 X 80 X 40 +/- 2.5                             +/- 2.5
200 X 35 X 20 +/-4.0                              +/-4.0
250 X45 X 25 +/- 4.0                             +/-4.0
250 X 60 X 30 +/-4.0                              +/-4.0
300 X 60 X 30 +/- 5.0                             +/- 5.0

 

Parallel Granite are made from good quality black granite. These Parallel Granite are precision lapped to achieve desired accuracy.

1

Standard sizes and accuracy of Luthra ParallelsGranite:

Sizes(mm)
LxBxH

     Accuracy in Microns um

Straightness                Parallelism

100 X 10 X 5 +/-1.25                             +/-1.25
150 X 50 X 25 +/- 2.5                             +/- 2.5
150 X 80 X 40 +/- 2.5                             +/- 2.5
200 X 35 X 20 +/-4.0                              +/-4.0
250 X45 X 25 +/- 4.0                             +/-4.0
250 X 60 X 30 +/-4.0                              +/-4.0
300 X 60 X 30 +/- 5.0                             +/- 5.0