When you need to clamp or spread materials, the Bessey DUO45-8 18" Bar Clamp is a versatile option. It has a 1 hand pump action and can be converted with the turn of a knob. The bar clamp's 1 hand pump action allows you to adjust it with ease. It also features removable/reversible pressure pads for added convenience. With heat treated steel as its bar material, this 18" long bar clamp is durable and sturdy. The reinforced polyamide handle provides a comfortable grip and prevents slipping while in use. Its max jaw opening measures 18", throat depth 3 1/4 in., spreading range 3 to 18-1/2 in., and capacity 18 in.. If you want an all around reliable tool that will get the job done right, then consider getting the Bessey DUO45-8 Bar Clamp today.