The GT® clamping heads are based on the Rubber-Flex® principle and have therefore an increased clamping tolerance of ± 0.5 mm. They are available in round, square and hexagonal design as well as with smooth, serrated or double serrated bore. Other profiles on request! Barmaterial is clamped in clamping heads with serrated or double serrated bore. Pre-processed or sensitive workpieces are clamped precisely in clamping heads with smooth bore with a possible runout tolerance ≤ 0,01 mm.