Original sentence: The F1 fragmentation hand grenade is a high explosive, anti-personnel grenade with a lethal radius of 6m, casualty radius of 15m and a safety radius of 30m.The grenade weighs 375g and contains over 4000 2.4mm steel ball fragments with a fuse time of 4.5 - 5.5 seconds
Edited sentence: The F1 is a high explosive, anti-personnel grenade with a lethal radius of 6m, casualty radius of 15m and a safety radius of 30m.The grenade weighs 375g and contains over 4000 2.4mm steel ball fragments with a fuse time of 4.5 to 5.5 seconds