Preformed Band Clamp, 1.00 Inch ID, 0.25 Inch Width, 0.020 Inch Thick

They come preformed to the 1.00 inch inside diameter right out of the box. No bending, hammering, or crimping needed. The clamp locks into place with one lever movement, so getting it seated on a hose assembly is pretty straightforward.

This preformed band clamp is made to fit a 1.00 inch inside diameter.

Fit comes down to the inside diameter. This one is a 1.00 inch ID preformed band clamp, with a 0.25 inch band width and 0.020 inch thickness, so it’s intended for a 1 inch diameter clamp point.

Correct on that. The inside diameter is fully smooth and gap-free, which gives you an even clamping surface all the way around. That matters a lot when you're working with softer hose materials since there's nothing inside the band to bite into or create a pressure point. It also cuts down on potential leak paths that a rougher or stepped ID could allow.