The G-58 is the smaller alternative to the award winning G-2. It is 16cm in length which makes it easier to use for those with smaller hands.
The GS-14 is basically the GS-11 with large serrations in the blade. A multi function knife, the serrations allow the utility knife to cut through tougher materials such as bread or allow it to be used with fruits and vegetables with thick skins and soft centres.