POWERTEC 70260 4 Inch Key Hose Clamp, Thumb Screw Key Adjustable Stainless Steel Hose Clamps for Dust Collection, Dust Collector and Dryer Vent Hose, Pipe Clamp, RV Clamp, Worm Gear Clamp, 10 pack

These are great! Perfect size and easy to tighten down without the hassle of using a screwdriver and trying to tighten a screw while laying over 2x6 in an attic installing a bathroom fan vent. These are super convenient to have. I was just the supervisor 😉 but also tightened one down as my husband worked. Great product and price.

Grandma here ... needed to revise the connections for the dryer vent. These key clamps make it easy to get the job done quickly and without tools. Good quality. They should last for years. The hardest part was getting behind the dryer!

These are so easy to use, my only style of clamp I use.

The thumb turns are a little weak and really close to the band, so it's hard to get your fingers around them. The plastic on the thumb turns is thin, so it will likely break over time.

Geat little hose clamps. Hold really well on my 4inch dust collector flexible hose which goes to my tools. I may invest in the magnetic connectors next for quick swapping of my tools instead of using more blast gates.

Fit and worked like a champ. Easy turning with thumb, one handed.

Great to have these always in the shop when needed, and cheaper than looking for them and getting them in the store when they are available

Really nice clamps .i love the thumb screws.

Great fit for 4" spiral reinforced dust collector duct and key turns easily.

Bom

Bien

Works good. So much easier than messing with a flat head screw driver. The worst kind out there. This is good. It works and put enough pressure to keep the dust collection hose tight

works