Why is there no drawing showing where the 6 inches is measured? ditto for all sizes? how can the smallest dimesion be several inches?

A 6-inch clamp will hold an object in its jaws a maximum of 6-inches in size; a 12-inch clamp will hold something twice as big—12-inches, ansd so on. This style of clamp is the greatest: one-hand is all that's needed to tighten or loosen the clamp, unlike a c-clamp which requires at least two hands to work and takes a long time and effort to clamp something.

What does clamp capacity mean? It's listed as 6" to 36" for this clamp. Is 36" or 3 ft. the range of travel?

A six-inch clamp of any type means you can put a six-inch object between its jaws (actual maximum opening would be 6-1/6" to 6-1/4 "); 36" clamp would fit 36" between its jaws.

According to there website as of 2008 their tools are made in China.

What is the throat depth on these clamps?

From throat to lower (inner) part of swivel jaws 1.25"From throat to upper (outer) part of swivel jaws 3-3/16"From throat to middle (center) part of swivel jaws 2.5"

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IRWINQUICK-GRIPOne-Handed Bar Clamp, Medium-Duty, 12", 1964718

IRWINQUICK-GRIPOne-Handed Bar Clamp, Medium-Duty, 12", 1964718

Product ID: 3315135

Details

Brand
IRWIN
Color
Black Blue
Global Trade Identification Number
Item Weight
1.5 Pounds
Item dimensions L x W x H
19.67 x 9.17 x
Manufacturer
IRWIN

💪300 lbs clamping force

🔄Quick-Change button for clamp/spreader

🛠️I-beam bar reduces flex & bending

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Details

Brand
IRWIN
Color
Black Blue
Global Trade Identification Number

Description

🔧 Clamp it. Lock it. Own your project like a pro.

POWERFUL ONE HANDED GRIP - Deliver up to 300 lbs of sustained clamping force with ease—free your other hand for precision work.
DURABLE I BEAM BAR DESIGN - Engineered to resist bending and flexing under extreme pressure, ensuring long-lasting reliability.
PROTECTIVE NON MARRING PADS - Removable swivel jaws with non-marring pads safeguard your workpieces while providing even pressure distribution.
VERSATILE QUICK CHANGE FUNCTION - Switch instantly between clamp and spreader modes with the innovative Quick-Change button—adapt on the fly.
EFFORTLESS QUICK RELEASE TRIGGER - Instantly release the clamp with a single hand, speeding up your workflow and boosting productivity.

The IRWIN QUICK-GRIP One-Handed Bar Clamp is a medium-duty, 12-inch clamp engineered for professionals and DIYers alike. It delivers a robust 300 lbs of sustained clamping force through a patented locking swivel jaw and an I-beam bar that minimizes flexing. Featuring a Quick-Change button to convert between clamp and spreader modes, removable non-marring pads, and a one-handed Quick-Release trigger, this tool combines durability, versatility, and ease of use to elevate your craftsmanship.

Specifications

ASIN	B001DK7SJM
Best Sellers Rank	#12,776 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Bar Clamps
Brand	IRWIN
Brand Name	IRWIN
Color	Black, Blue
Customer Reviews	4.7 out of 5 stars 2,829 Reviews
Global Trade Identification Number	00038548103709
Included Components	IRWIN QUICK-GRIP Bar Clamp, One-Handed, Medium-Duty, 12-Inch (1964718)
Item Dimensions	19.67 x 9.17 x 4.92 inches
Item Type Name	IRWIN QUICK-GRIP Bar Clamp, One-Handed, Medium-Duty, 12-Inch (1964718)
Item Weight	1.5 Pounds
Item dimensions L x W x H	19.67 x 9.17 x 4.92 inches
Manufacturer	IRWIN
Manufacturer Part Number	1964718
Manufacturer Warranty Description	No
Material	Resin
Material Type	Resin
Model Number	2005992
Style	12 Inch
Style Name	12 Inch
Tensile Strength	300 Pounds
UPC	038548103709 809386496731 640026827108 803982926265 787721788928 041114556731 115970698406 801200943544 100058641948 038548512228 168141354199 807031777006 809187144442 182682285644 100177460499 151903413784 787721839309 012302152172
Unit Count	1.0 Count

Reviews

B**E

5.01.2022

F**.

23.06.2023

E**R

27.02.2026

D**K

26.09.2025

K**1

8.02.2026

D**.

25.02.2026

V**Y

29.04.2026

B**E

20.03.2026

ヒ**ロ

9.08.2025

N**8

13.05.2023

B**1

28.11.2025

H**L

2.04.2025

A**R

12.06.2022

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฿3148

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In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

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