WL9-4319 Engineering PP Hardware Tool Case

The outer shell is 432 x 240 x 188 mm and the internal cavity is 407 x 187 x 178 mm. Externally the case occupies 432 x 240 mm while the usable floor inside is 407 x 187 mm, the difference coming from the wall section, the seal channel and the moulded closing geometry rather than measurement error. Size a load from the inner dimensions, never from the outside, because outside figures overstate capacity. A 407 x 187 mm floor with 178 mm of inner height, the same long narrow deep body as WL9-4318, so long-handled tools stand upright; at 1587 g the exported unit weight is 383 g lighter than the same-cavity sibling.

The lid adds 38 mm of internal depth and the base adds 140 mm, giving 178 mm of combined inner height. A 140 mm base with a 38 mm lid concentrates the depth in the body and gives upright contents a long supporting wall, while leaving little headroom on the lid side for raised fittings.When judging whether a body suits your contents, read the base figure first, because it sets how tall an item can stand, while the lid figure decides how much headroom remains above it. Only the sum of the two is usable height, and when measuring a part, include handles, connectors and bosses, or the lid will press on it once closed.

The shell uses a sealed closure and provides an IP67 waterproof and dustproof rating. Tool cases shuttle between site and vehicle, and the sealed cavity keeps grit and damp off the contents, which limits surface rust and loss of oil film on metal parts. 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 category for WL9-4319 is hardware tool cases, under code 911. The long narrow 407 x 187 x 178 mm cavity suits long-handled hand tools, wrench sets and slim accessories as a group, and 178 mm of inner height lets them stand. A 3 mm wall with a 1587 g unit weight fits projects that need to keep carton weight down, such as vehicle tool kits or site tools one person carries.

The cavities match at 407 x 187 x 178 mm, the wall is 3 mm on both, and the lid and base depths are the same 38 mm and 140 mm, so load capacity is identical. Two things differ: outside height is 188 mm against 186 mm, and unit weight is 1587 g against 1970 g, making this model 383 g lighter. If the choice turns on weight or freight, this one costs less to move; if outside height has to stay within 186 mm, confirm against the matching model, because a 2 mm difference decides whether the case fits a tight shelf gap. Compare both on the same quotation so the final configuration can be fixed against real figures.