पञ्चत्रिंशत्पललोहां द्विसप्तत्यङ्गुलायामां समवृत्तां कारयेत् ॥ कZ_०२.१९.१२ ॥
pañcatriṃśatpalalohāṃ dvisaptatyaṅgulāyāmāṃ samavṛttāṃ kārayet
He should have (a standard beam/rod) made of iron weighing thirty-five palas, with a length of seventy-two aṅgulas, of uniform circular form.
It enables reproducible official tools across jurisdictions and supports audits: an inspector can verify whether equipment matches the state norm.