Oetiker 10100024 Zinc-Plated Steel Hose Clamp, Double Ear, Clamp ID Range 15 mm (Closed) - 18 mm (Open) Genuine Oetiker 2-Ear Clamps The ears of these clamps do not have a dimple and nearly double the clamping range, compared to the 1-ear clamp. 2 ears provide a degree of elasticity to accommodate changes in size of the parts being joined, such as that which may be caused by thermal expansion or vibration. Clamp diameterThe following applies as a guideline: To determine the correct clamp diameter, push the hose onto the attaching material, (e.g. the ), and then measure the outer diameter of the hose. The value of the outer diameter must be slightly above the average value of the diameter range of the clamp to be selected. The listed size of the clamp denotes the inner diameter (id) of the clamp. How to Install These clamps can be easily installed using Oetiker Hand Installation Pincers (HIP). The HIP tools have been designed especially for pinching ear clamps quickly and easily. Oetiker HIP Compound Action, Standard Jaw Pincer, Item No. 14100386. Oetiker HIP Compound Action Side Jaw Pincer, Item No. 14100387, Oetiker HIP Single Action Standard Jaw Pincer, Item No. 14100396. How to Remove Ear clamps can be easily removed using Oetiker's hand clamp cutter (HCC). The HCC tool is designed to safely remove ear clamps.