This special tool for opening of gate valves and granary Fig. 173. Prosecutor-kaki size could be very different, long and short, thick and thin. In "Ninpiden" prosecutors described sample-kaki with a handle made of cypress wood 15 cm long with a hole in the bottom, through which a cord length of 21 cm Iron Prosecutor part-Kaki is bent at a right angle in half, has a thickness of 4.5 mm, a width 6 cm and a total length of 36.5 cm Such tools used Japanese carpenters. Prosecutor-Kaki slips into the slot and the bottom to hook latch.