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

granite parallel

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.

granite parallel

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