US
Flex

FLEX STACK PACK FS1105 3-Drawer Tool Box

  • 70 lb load capacity for tools and materials
  • 3 auto-locking drawers on rust-resistant rails
  • 22 x 15.1 x 16.3 in (L x W x H)
  • 29.5 lb empty weight
  • 6 long and 18 short dividers included
  • Polypropylene body, aluminum-reinforced corners
  • STACK PACK compatible quick-connect latches
  • One-year limited warranty, register within 30 days

Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A sound drawer unit for anyone already using the FLEX STACK PACK system who wants locked, divided storage for small tools and hardware. No wheels are mentioned, so it rides on other modules or gets carried.

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ASIN: B0CT1TC3BTModel: FS1105Category: Tool Boxes

Overview

FLEX built its STACK PACK drawer box to click onto other modules in the system through quick-connect latches. Each drawer auto-locks so nothing slides open in transit, and an onboard security bar locks every drawer against theft and stows away between jobs.

Organization is the reason to buy: removable dividers in each drawer turn bulky storage into sorted bins for fasteners, bits and compact tools like impact wrenches. Its usefulness depends on owning or planning other STACK PACK pieces, since the latches are built around that system.

Who it's for

Tradespeople and serious DIYers who move small tools between truck and site get locked, divided drawers that ride on top of other modules. Owners of a different modular system, or anyone wanting a wheeled base, should look elsewhere.

Pros and cons

Pros
  • Drawers auto-lock during transport
  • Rust-resistant rails for smooth sliding
  • Removable dividers in every drawer
  • Onboard security bar deters theft
Cons
  • Heavy before loading any tools
  • Warranty requires registration by a deadline
  • Wheels and carry handles not listed
  • Drawer size suits compact tools

Performance notes

How well it travels comes down to the auto-locking mechanism holding each drawer shut and the latches holding the stack together over bumps. Rust-resistant rails govern how smoothly drawers run after exposure to damp jobsite conditions, and spreading heavy items across drawers helps the stack stay balanced.

Specifications

BrandFlex
ModelFS1105

Frequently asked questions

How do I keep the FLEX STACK PACK FS1105 drawers sliding smoothly?

The rails are rust-resistant, so clearing grit and debris from them is the routine. The listing gives no lubrication or cleaning instructions beyond that.

Can the FLEX FS1105 dividers be rearranged?

Yes. Each drawer takes removable dividers, and the box ships with 6 long and 18 short ones so you can set your own layout.

Will FLEX STACK PACK drawers open while the stack is moving?

The auto-locking drawers are designed to stay shut during transport, and the onboard security bar can lock them against theft.

Does the FLEX STACK PACK 3-drawer tool box have wheels?

No wheels are listed. It is a stacking drawer module meant to latch onto other STACK PACK pieces.

Is the FLEX STACK PACK warranty automatic?

No. The one-year limited warranty applies when the product is registered within 30 days of purchase at registermyflex.com.