POWERTEC

POWERTEC 20340 Clamp

Clamp
3.15 pounds

4.3/ 5 on Amazon241Amazon ratings50+bought last month3.7ProductDome score

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

Best forYou need another mid-weight clamp for general shop work

A reasonable addition to a clamp collection if the weight class fits your work, though confirm jaw opening and throat depth separately since the listing does not include them.

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ProductDome scorecard

How it ranks among the 377 clamps we track

3.7/ 5ProductDome scoreMedium confidence

Owner satisfaction · 56% of scorecategory median 4.5★4.3

4.3★ across 241 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 257 ratings3.0

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

Buyer demand · 11% of score2.3

50+ 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 377 clamps we track - how the scorecard works · full clamps 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

A POWERTEC 20340 clamp weighing 1.43 kilograms, about 3.2 pounds. Beyond weight the listing does not detail throat depth, jaw opening or clamping style, so this reads as a general workshop clamp rather than a specialized one.

Weight is the only hard spec here, which puts this in the mid-size range for a bar or bench-style clamp rather than a small spring clamp or a heavy-duty pipe clamp. POWERTEC's clamp line is common in woodworking shops for glue-ups and general assembly work.

1.43 kilogram weight
POWERTEC brand, model 20340
Tools clamps category
4.3 stars from 241 ratings

Who it's for

Woodworkers and DIYers who need an extra clamp for glue-ups, assembly or general holding tasks around a bench.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Mid-weight build suited to general shop clamping
POWERTEC brand tool

What to check first

Listing omits jaw opening and throat depth
No material spec given

Performance notes

At 1.43 kilograms this sits in a middle weight class, heavier than small spring clamps but lighter than large pipe clamps, which typically tracks with a bar clamp built for bench-scale glue-ups rather than heavy industrial holding.

Specifications

Brand	POWERTEC
Model	20340
Item Weight	3.15 pounds

How it compares

This product against the closest alternatives we track in clamps.

Product	Amazon rating	Ratings	ProductDome score
POWERTEC 20340 ClampThis product	4.3 / 5	241	3.7 / 5
IRWIN 1964758 ClampIrwin	4.7 / 5	23,290	4.6 / 5
Bessey BPC-H34 ClampBESSEY	4.8 / 5	9,535	4.5 / 5
Yost LV-4 ClampYost	4.6 / 5	10,723	4.5 / 5
EMART EM-CLAMP-6EMART	4.7 / 5	4,997	4.4 / 5

Frequently asked

Questions about the POWERTEC 20340

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

How much does the POWERTEC 20340 weigh?

1.43 kilograms, about 3.2 pounds, per the listed item weight.

What is the POWERTEC 20340 rated?

4.3 stars from 241 ratings.