Does anyone have expereince and know the max size beaker this can fit? 100ml, 150ml, 250ml, or 400ml?

The width of the fully opened prongs is about 9.4 cm, so it should fit up to 400 ml and possibly even 600 ml Pyrex beaker.

How long is it? How short can it be adjusted to?

It is a fixed length so you will need to adjust your set up. Measure from the plate w/flat screw head to the base of the 3 prongs, there is also a fine ajustment flange screw on the shaft between the 2 points you measured from to start . Hope it helps. Steve

How far from the vertical rod is the gripping point? In other words, if grasping a test tube, what is the clearance between it and the vertical rod?

For a test tube and a vertical rod each having a diameter of about 5/8 inch (1.6 cm), the clearance will be approximately 5.4 inches (13.7 cm).

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Eisco Lab Clamp for Lab Stand, Beaker Holder or Flask Clamp - Heat Resistant PVC Coated Prongs for Holding Objects up to 3.5 Inch Diameter - Boss Head Connects to Lab Stand Rods

Eisco Lab Clamp for Lab Stand, Beaker Holder or Flask Clamp - Heat Resistant PVC Coated Prongs for Holding Objects up to 3.5 Inch Diameter - Boss Head Connects to Lab Stand Rods

Product ID: 4250502

Details

Brand
EISCO
Color
Black Metallic
Global Trade Identification Number
Item Weight
5.6 ounces
Item dimensions L x W x H
9 x 2 x 3
Material
Die Cast Alloy

📏3.5-inch wide jaws fit diverse glassware

♻️Heat-resistant PVC coating up to 100°C

🛠️Die cast alloy for unmatched durability

₹ 3145

Duties & taxes included

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Description

🔬 Clamp it right, hold it tight — elevate your lab game!

SAFE SCRATCH FREE CLAMPING - PVC-coated prongs provide a secure, slip-free grip that protects delicate glassware from damage and withstands moderate heat.
LAB GRADE QUALITY FOR EVERY SETTING - Trusted by professionals, ideal for classrooms and home labs—because your experiments deserve the best.
VERSATILE HOLD FOR EVERY EXPERIMENT - Wide 3-finger jaws open up to 3.5 inches, accommodating a broad range of beakers, flasks, and glassware sizes.
UNBREAKABLE GRIP UNMATCHED STRENGTH - Die cast alloy construction ensures corrosion resistance and long-lasting performance in any lab environment.
360 SWIVEL FOR PRECISION POSITIONING - Swivel bosshead allows full rotation, enabling perfect alignment and easy adjustments on rods up to 15mm diameter.

The Eisco Lab Clamp features a robust die cast alloy frame with corrosion resistance, wide 3.5-inch jaws coated in heat-resistant PVC for secure, scratch-free holding, and a 360° swivel bosshead compatible with standard lab rods. Perfect for professional labs, classrooms, and home use, it combines durability, versatility, and precision in one sleek tool.

Specifications

ASIN	B00AWS3QV0
Best Sellers Rank	#26,127 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Lab Beaker Clamps
Brand Name	EISCO
Color	Black Metallic
Customer Reviews	4.6 4.6 out of 5 stars (729)
Global Trade Identification Number	00849230027957
Included Components	Product
Item Diameter	3.5 inches
Item Dimensions	9 x 2 x 3 inches
Item Weight	5.6 ounces
Manufacturer	Eisco
Manufacturer Part Number	CH0688
Material Type	Die Cast Alloy
Model Number	CH0688
Number of Items	1
Style Name	Adjustable
Tensile Strength	1500 psi
UPC	849230027957

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