... 1.Material:65Mn 2.Hardness: clamping part HRC55~60 elastic part HRC40~45 3.Type:148E CLAMPING COLLET DIN6343-F28/148E1.Material ... :65Mn2.Hardness: clamping part HRC55~60 elastic part HRC40 ... ,er nuts,centers,mores taper sleeves,drill chucks,precision tool vises,parallel block series,V-block clamp,etc.Sales covering the ...