So named because of their very low profile, they project only 6mm, above your bench top. A thumb-operated eccentric cam lever controls the sliding jaw, allowing you to secure work quickly. The jaw has a 6mm range of travel and applying up to 130kg of force. Flats on the cam provide secure stops at 3mm and 6mm of travel. The jaw face has a 5° inward cant to help hold a work piece securely. The cam and jaw are cast steel, heat-treated for surface hardness. The standard post version is for use in a 19mm (3/4") diameter through-hole (or blind holes at least 47mm deep). The wedge-lock version is usable at any angle from horizontal to vertical. It will anchor firmly in a 19mm (3/4") diameter through-hole in material as thin as 16mm or in blind holes that are a minimum of 34mm deep. Made in Canada