Craftsman

CRAFTSMAN CMMT21086 Wrench

Wrench
10.6 ounces

4.8/ 5 on Amazon1,302Amazon ratings200+bought last month4.2ProductDome score

Better rated than 72%
More reviewed than 66%

Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forYou already know the CMMT21086 is the size and type you need

A light, 0.3 kilogram Craftsman wrench with a strong 4.8 rating, worth it once you confirm the exact size and drive type against Craftsman's catalog.

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ProductDome scorecard

How it ranks among the 561 wrenches we track

4.2/ 5ProductDome scoreMedium confidence

Owner satisfaction · 56% of scorecategory median 4.7★4.8

4.8★ across 1,302 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 740 ratings3.9

1,302 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.1

200+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 561 wrenches we track - how the scorecard works · full wrenches data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The CMMT21086 is a Craftsman wrench weighing about 0.3 kilograms, roughly 10.6 ounces. Beyond brand, model and weight, this listing does not specify jaw size, drive type or whether it is a ratcheting or combination wrench.

Craftsman's CMMT prefix covers a wide range of hand tools, so the model number alone does not confirm which wrench style or size this is. Buyers should cross check the CMMT21086 model number against Craftsman's catalog for exact size before ordering.

Model CMMT21086
0.3 kilogram item weight
4.8 rating, 1,302 reviews
Craftsman brand

Who it's for

Works for someone who already knows they want this specific Craftsman model number. Anyone shopping by wrench size or type should confirm those details outside this listing, since they are not included here.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Light 0.3 kilogram weight
4.8 rating across 1,302 reviews
Craftsman brand backing

What to check first

No jaw size or drive type listed
No seller description to confirm wrench style

Performance notes

At roughly 10.6 ounces this sits toward the lighter end of hand wrenches, though without jaw size or drive type listed, its fit for any specific bolt or fastener cannot be confirmed here.

Specifications

Brand	Craftsman
Model	CMMT21086
Item Weight	10.6 ounces

How it compares

This product against the closest alternatives we track in wrenches.

Product	Amazon rating	Ratings	ProductDome score
CRAFTSMAN CMMT21086 WrenchThis product	4.8 / 5	1,302	4.2 / 5
Amazon AMZ1715 WrenchAmazon	4.7 / 5	14,700	4.6 / 5
Wheeler 553556 WrenchWheeler	4.8 / 5	17,300	4.6 / 5
LEXIVON LX-145 WrenchLEXIVON	4.8 / 5	14,700	4.6 / 5
MALCO MSHMLC WrenchMalco	4.8 / 5	14,300	4.6 / 5

Frequently asked

Questions about the Craftsman CMMT21086

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much does the CMMT21086 weigh?

About 0.3 kilograms, roughly 10.6 ounces.

What is the rating based on?

A 4.8 average across 1,302 ratings.