The Klein Tools MODbox Three Drawer Rolling Toolbox (54890MB) is the rolling base of a MODbox mobile workstation. This is a three-drawer rolling toolbox designed for electricians and trades who move a lot of gear across jobsites and want drawers they can open without unstacking the boxes on top. It carries up to 250 lb (113.4 kg) as a system and rolls on 10" (25.4 cm) rubber wheels.

The drawer layout is built around how tools actually get packed. The large lower drawer fits bulky power tools and carries up to 30 lb; the two compact top drawers hold accessories, batteries and smaller items at up to 20 lb each, for a box capacity of 70 lb (31.8 kg). Every drawer stays accessible with other MODbox boxes stacked on top. Drawers run on heavy-duty, full-extension ball-bearing slides, and 24 removable dividers let you set up compartments your way. Total storage is 3,577 cubic inches (58,649 cu cm).

Security is handled at three levels. A locking bar secures the drawers during transport and stores in the box base when not in use. A steel-reinforced locking latch helps prevent tool theft and accepts padlocks with a 5/16" or smaller shackle. To lock down the whole stack, run a cable lock through the 3/8" steel-reinforced lock location and the open wheel system.

Mobility comes from the 10" rubber wheels and a removable metal telescoping handle. The handle extends to 44" (111.8 cm), collapses to 27" (68.6 cm), and comes off entirely for tight spaces; without it, the box stands 16-1/2" (41.9 cm) tall. Footprint is about 21-3/16" x 22-5/16" (53.8 x 56.6 cm), and the empty box weighs 44.5 lb (20.2 kg).

As a MODbox piece, it has built-in side rails for MODbox attachments, a top that accepts stacking MODbox boxes, and back storage. Drawers and latch are impact-resistant polymers. Klein lists it as not weather resistant, so keep it in the trailer or under cover overnight.

Who should buy it: electricians and service techs building a MODbox system, and anyone who wants rolling drawer storage that keeps power tools, batteries and accessories organized and locked between job sites.

The Base Your MODbox Stack Deserves

The Klein Tools MODbox Three Drawer Rolling Toolbox (54890MB) rolls a full MODbox stack on 10" wheels and lets you open every drawer without unstacking.

• Who it's for: Electricians and service techs moving a lot of gear across sites who want it organized and locked.
• Why it stands out: Drawers that stay accessible when stacked, a 250 lb system rating, ball-bearing slides and three ways to lock it down.
• Worth knowing: It weighs 44.5 lb empty and is not weather resistant. Store it under cover.

• How much weight can the Klein 54890MB carry? The box is rated for 70 lb (31.8 kg) across its drawers, and the system capacity with stacked MODbox components is 250 lb (113.4 kg).
• Can I open the drawers with boxes stacked on top? Yes. Klein designed all drawers to stay accessible while stacked.
• What size padlock fits? The steel-reinforced latch fits padlocks with a 5/16" or smaller shackle.
• Is the handle removable? Yes. The telescoping handle is removable for tight spaces.
• Is it weather resistant? No. Klein lists it as not weather resistant.