चतुरङ्गुलो धनुर्ग्रहः ॥ कZ_०२.२०.०८ ॥
caturaṅgulo dhanurgrahaḥ
Phần tay nắm cung (dhanur-graha) dài bốn aṅgula.
It standardizes production and inspection, reduces failure risk in combat, and enables predictable procurement and inventory control.