The top and bottom plates and centre blocks are manufactured out of heavy duty close grained cast iron having BH 190-21O.

These castings are stress relieved after rough machining before finish machining.   Finally these are fine finish ground/hand scraped to give the required degree of accuracy.

The roller and slip gauge platform are manufactured out of Chrome alloy steel hardened to RC 58-60.

These are stabilized after rough grinding before finish ground and finally fine finish ground/lapped to get the required degree of accuracy.

Sine Bench Centres are manufactured in accordance with IS : 5979-1970 with regard to workmanship, accuracy, and finish and are guaranteed.