WL6-4120 Protective Case

The outer shell is 405 x 362 x 195 mm and the internal cavity is 378 x 307 x 187 mm. Externally the case occupies 405 x 362 mm of bench or shelf space while the usable floor inside is 378 x 307 mm, the difference coming from the wall section and the moulded closing geometry. Size a load from the inner dimensions, never from the outside, because outside figures overstate capacity. The 187 mm inner height is the maximum upright height available, and any lining you add reduces it further, so allow for that when the insert is designed.

The shell uses a sealed closure and provides an IP67 waterproof and dustproof rating. Blades and knives are most at risk from moisture during transit, and the seal cuts that loss noticeably. The rating applies to the sealed cavity of the case itself, so if you store moisture-sensitive contents, pair it with desiccant or a humidity management accessory and check the sealing face for trapped debris every time you close the lid, since a single trapped fragment undermines the seal.

The factory usage categories listed for WL6-4120 are knife cases. Suited to grouped storage and transport of knives, blades and matching hand tools, and often used as an intermediate container for hardware spares. With a 378 x 307 x 187 mm cavity and a unit weight of 2640 g it works best as fixed-station storage or a vehicle-transport case that needs protection from moisture, dust and knocks, rather than as a container left permanently outdoors.

Both use the same 405 x 362 mm footprint. This model measures 195 mm outside with a 187 mm inner height and a 2640 g unit weight, while WL6-4114 is 135 mm outside with a 120 mm inner height, a 4.0 mm wall, a 2100 g weight and 8 pieces per carton. Pick between them purely on content height. The two models are not a step up from one another but a division of labour by content size: measure the height of the contents first, then the floor area, and confirm pack quantity and carton size last. Applying the same order when an insert is designed avoids reworking a lining because the case body was fixed too early.