SIZE: Two kinds of apertures, suitable for 15.8mm/20mm diameter corrugated pipes, to meet your different needs EASY TO USE: The hand push Corrugated Interface Maker can be used directly, which is very convenient. The non hand push Corrugated Interface Maker needs to be used with a hammer PORTABLE: The Corrugated Interface Processing Tool is compact and easy to carry, ideal for storage in a pocket or tool bag APPLICATION: Used to process the interface of bellows A45 STEEL: Bellows Flat Mouth Tool is made of high quality alloy steel, which is durable and can be used for a long time, Weight: 2.36556007126 pounds, Manufacturer: Zambuph