Sealey fc300 f type clamp 300600mm sealey fc300 this f type clamp from sealey is heavy duty and lightweight making it ideal for use on sensitive work pieces and right angles fitted with large full face pads for even pressure distribution features a maximum clamping force of up to 400kg and manufactured using a strengthened carbon steel bar minimising bending supplied with two sliding flat edges ideal for keeping work surfaces level whilst clamping sealey fc300 f type clamp 300mm