# Kobalt CaseStack Medium Tool Box

> Kobalt CaseStack Medium Tool Box (KCS-MTBOX1-03) is a medium tool box from Kobalt CaseStack. It measures 21.25 × 14 × 11 in (L × W × H).

- Line: [Kobalt CaseStack](https://modulartoolbox.com/lines/kobalt-casestack/)
- Category: [Tool Boxes](https://modulartoolbox.com/compare/tool-box/)
- Size tier within its line: medium
- Status: current
- Data confidence: inferred (last verified 2026-09-30; [what this means](https://modulartoolbox.com/how-we-compare/#confidence))
- Page: https://modulartoolbox.com/products/kobalt-casestack-medium-tool-box/

## Specifications

| Spec | Value | Source |
|---|---|---|
| Model / part number | KCS-MTBOX1-03 | [lowes.com](https://web.archive.org/web/20260417012328/https://www.lowes.com/pd/Kobalt-CaseStack-Medium-Tool-Box/5012928205) (retailer, archive, 2026-04-17) |
| Dimensions (L × W × H, in) | 21.25 × 14 × 11 | [lowes.com](https://www.lowes.com/pd/Kobalt-CaseStack-Medium-Tool-Box/5012928205) (retailer, search, 2026-09-30) |
| Weight (lb) | not published |  |
| Load capacity (lb) | not published |  |
| Material | not published |  |
| Weather rating | not published |  |

## Where to buy

| Store | Price (USD) | Availability | Checked | Link |
|---|---|---|---|---|
| Lowe's | not checked | unknown | — | [View at Lowe's](https://www.lowes.com/pd/Kobalt-CaseStack-Medium-Tool-Box/5012928205) |

Prices are re-checked weekly; a date more than a month old means the store could not be re-read.

## The equivalent in other lines

Same category, same size tier (medium), different line:

- [Bosch L-BOXX-2](https://modulartoolbox.com/products/bosch-l-boxx-2/)
- [DeWalt TSTAK VI Deep Box](https://modulartoolbox.com/products/dewalt-tstak-vi-deep-box/) — $38.99
- [Festool Systainer3 SYS3 M 137](https://modulartoolbox.com/products/festool-systainer3-sys3-m-137/) — $69.00
- [Festool Systainer3 SYS3 L 137](https://modulartoolbox.com/products/festool-systainer3-sys3-l-137/) — $80.00
- [Festool Systainer3 SYS3 TB M 137 ToolBox](https://modulartoolbox.com/products/festool-systainer3-sys3-tb-m-137/) — $55.00
- [Festool Systainer3 SYS3 TB L 137 ToolBox](https://modulartoolbox.com/products/festool-systainer3-sys3-tb-l-137/) — $66.00
- [Flex STACK PACK Medium Tool Box](https://modulartoolbox.com/products/flex-stack-pack-medium-tool-box/) — $98.00
- [Klein Tools MODbox Medium Toolbox](https://modulartoolbox.com/products/klein-modbox-medium-toolbox/) — $94.98


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Modular Toolbox lists modular tool storage from every brand side by side, with a source for every spec. [How we compare](https://modulartoolbox.com/how-we-compare/). Data as of 2026-10-03.