. The sophisticated fuses has a number of safeties which are removed by set back and centrifugal forces developed on ammunition firing. The time for functioning of the fuses is easily set by the soldier which makes the ammunition function in air burst mode, at a pre-set time. 2. The fuses distinct sections of clock-work mechanism, centrifugal safety device and detonator safety device. Though design is intricate due to additional safeties yet it is reliable and effective. The fuses functions in air burst and direct action modes. 3. Having more number of safeties, the fuses is very safe in storage and transportation.