# CRAFTSMAN CMMT12123 105-Piece Mechanics Tool Set

The CRAFTSMAN CMMT12123 Mechanics Tool Set combines 1/4-inch and 3/8-inch drive tools in a 105-piece SAE and metric kit. Its listed low-profile, 72-tooth ratchets are intended to help reach confined spaces, while the molded case keeps the assortment together.

- [Original product page](https://best-deals.pro/product/craftsman-cmmt12123-105-piece-mechanics-tool-set)
- [View offer](https://best-deals.pro/visit/craftsman-cmmt12123-105-piece-mechanics-tool-set)
- Market: US
- Language: en-US
- Currency: USD
- Brand: CRAFTSMAN
- Model: CMMT12123
- Category: Tools & Garden > Hand Tools
- Price: 66.47 USD
- Previous price: 109.00 USD
- Discount: 39%
- Price checked: 2026-11-14T09:44:21.983Z
- Rating: 4.7 / 5
- Reviews: 339

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing describes a 105-piece collection of 6-point sockets and drive tools in SAE and metric sizes.
- The 1/4-inch and 3/8-inch ratchets are described as low-profile, with a 72-tooth mechanism and 5-degree arc swing.
- A molded case with metal hinges is specified for storage. The description says it is designed to fit CRAFTSMAN metal storage boxes.
- The listing positions the set as either a starter kit or an addition to an existing tool collection.

## Pros

- Both SAE and metric sizing are represented in one set.
- Two drive sizes and a 5-degree ratchet swing are useful when working in tighter spaces, according to the listing.
- The included case provides a dedicated place to keep the set together.

## Cons

- This is a hand-tool set with 1/4-inch and 3/8-inch drives. Buyers needing other drive sizes or a broader tool assortment may need additional tools.

## Specifications

### Identity
- Brand: CRAFTSMAN
- Model: CMMT12123
- Number of pieces: 105
- Drive sizes: 1/4-in. and 3/8-in.
- Socket style: 6-point
- Measurement systems: Standard \(SAE\) and Metric
### Materials and finish
- Material listed: Chrome Vanadium Steel
- Finish: Polished
- Corrosion-resistance claim: Full Polish Chrome Finish
### Ratchets and storage
- Ratchet tooth count: 72-tooth
- Ratchet arc swing: 5 degree arc swing
- Low-profile head comparison: Up to 25% thinner head\* for access in tight spaces \(as compared to CMMT81747 & CMMT81748\)
- Case: Durable Blow Molded Case
- Case hinges: metal hinges
### Coverage and warranty
- Listed assortment: sockets, ratchets, and specialty bits
- Warranty claim: Full Lifetime Warranty

## Before you buy

- The claimed thinner ratchet-head comparison is specifically against CMMT81747 and CMMT81748. The product description calls the assortment broad but does not provide individual socket sizes or a complete contents breakdown, so check the selected listing if particular sizes or bits are essential.

## In the box

- Molded storage case (Check selected pack): The title and description claim a case, but no explicit package inventory is supplied.

## A good fit for

- Automotive hobbyists seeking a compact SAE and metric socket-and-ratchet starter set.
- Mechanics who want a portable case for a set organized around 1/4-inch and 3/8-inch drives.
- Tool owners adding a small assortment of sockets, ratchets and specialty bits to a larger collection.

## Less suited to

- Buyers who need confirmed individual socket sizes before purchase.
- Anyone seeking a general-purpose household tool kit or a set with drive sizes beyond the listed 1/4-inch and 3/8-inch.

## Customer feedback

Customer feedback highlights perceived quality and craftsmanship, a useful assortment of sockets, and a case that helps keep pieces together. Some feedback appreciates the set's functionality and portability, including for weekend mechanics. Ease of use receives mixed feedback. In context, the listed 105-piece SAE and metric assortment with two drive sizes suits compact automotive tasks, but the positive impressions do not establish whether its unspecified socket sizes match a particular job.
- Positive themes: Customer feedback describes the set as well made and appreciates its essential socket assortment and storage case.
- Positive themes: Feedback also mentions functionality and portability for weekend mechanical work.
- Mixed feedback: Ease of use receives mixed feedback.

## Frequently asked questions

### Does the CMMT12123 include both SAE and metric tools?
Yes. The listing identifies the set as Standard \(SAE\) and Metric. It does not provide a complete breakdown of the included sizes.
### What drive sizes are listed?
The product description specifies 1/4-inch and 3/8-inch drives. It does not claim additional drive sizes.
### What is the ratchet swing specification?
The listed 72-tooth ratchets have a 5-degree arc swing. The description also claims a low-profile head up to 25% thinner than two named CRAFTSMAN models.
### Is a case included?
The title and product description claim a durable molded case with metal hinges. Check the selected listing for the specific package details.
### What warranty is stated?
The feature listing says Full Lifetime Warranty. Review the applicable warranty terms for coverage and conditions.

## Alternative options

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## Add-ons

- [CRAFTSMAN Screwdriver Set, Bi-Material, 8 Piece Set \(CMHT65075N\)](https://best-deals.pro/visit/craftsman-cmmt12123-105-piece-mechanics-tool-set)
- [CRAFTSMAN Adjustable Wrench Set, 3-Piece All Steel, Metirc and SAE Scale \(CMMT12001\)](https://best-deals.pro/visit/craftsman-cmmt12001-adjustable-wrench-set)

## Images

![CRAFTSMAN CMMT12123 105-Piece Mechanics Tool Set — 1](https://best-deals.pro/i/XUETHDfBmBMt84TTXSOzQ1JG-qK8ZyxycdVckMYKskLsXrUPH8vGWgnMayx_ETdBAB3obCksCvYrvXfPn0RaV8cKf9zM-KNuIllN9GR0E7tqCADVbq0OpTG9.jpg)

![CRAFTSMAN CMMT12123 105-Piece Mechanics Tool Set — 2](https://best-deals.pro/i/HMgcTkaABy3mKz8I6PVnRD1XjmD5-c9GyxeAiP91VHhZy1nCx0SQbO_zg4FNklCz-tnOWNtdGAYpdKJ3uVBDtx-DFTnFmenGJPIg0cfhYDoMgnEI46L3kcUO.jpg)

![CRAFTSMAN CMMT12123 105-Piece Mechanics Tool Set — 3](https://best-deals.pro/i/0qTAXE1hTQWUgaj_viPxtnC_M9lKDjSEJa10FhxJRBC8gA5quMT7pMTlLr4I3wElWjrOvSadpynenYZ-qX6T3CAONX4uQ_Jx1WquRuim2v1e2l7zpBwokJiD.jpg)

![CRAFTSMAN CMMT12123 105-Piece Mechanics Tool Set — 4](https://best-deals.pro/i/WwjCcfheYPV0PmU7M29AqLSGyVPJxuPiyfFxwTfXYwmzT1CAVA4GZIGGlpUKaWhQmTK_vcJbArJrR6a2AB3o5m6T2C7GvZGgTOqH5w6gWUauhEaUv6AHwQ_y.jpg)

![CRAFTSMAN CMMT12123 105-Piece Mechanics Tool Set — 5](https://best-deals.pro/i/A47edj9m9IkiMYTu9yfEF7Fh50bS9OnRHIg1BTswbYk_5BNj3Lc8HfTwuRRoCZFzF6bABpI8PMQEc7dAJPGEGeoyyrpQXIyqzTydcIkogUEGNTgSnW9lXXHU.jpg)