POWERTEC 70127 2-1/2 Inch Key Hose Clamp, Adjustable Stainless Steel Hose Clamps for Dust Collector and Dryer Vent Hose, Worm Gear Clamp, 5 pack

Excellent strength for attaching my dust collector hose to my various equipment outlets.

Does the job. Nice that you don't need a screw driver to install. Good clamping force. Would buy again.

Good clamp that is easy to turn and required no tools. It was somewhat hard to get it started so I dropped 1 star but they do work well and hold well and are easy to turn by hand

The main reason I bought these was because of the large thumb screw handles. The clamps work great because you can easily tighten them. I used them on several dust collection hoses, and I am very pleased. I have used Powertec products before and I am pleased with the quality. I will buy them again.

I use these on all my large wood shop tools that don't have a dedicated dust collection hose. Make dust collection much easier and efficient to use.

good product for the price

I like the idea of these clamps, and they work well on regular 4" dust collector hose. They do not work well with the Powertech 70149-P2 4" Flex Cuff which is what I bought them for.

Honestly didn't expect these to be this nice. The dip-cap style handles are relatively tight and well fitted. The loops are 4mm thick wire, and these things actually have some good resistance to them when squeezing. They seem well made, time will tell. I bought these for a bath fan vent roof duct, I'll update with results when I get there. I can't say that the value for money was "the deal of a century" or anything, but I am defintely happy with their quality, if not surprised at the value.