Short twist drill bits with cylindrical shank ECO powerful standard drill high concentricity high breakage resistance temperature-resistant cutting edge up to approx. 400..C Good chip removal for normal drilling work in generally common materials, use: for steel and cast steel, alloy and unalloyed, grey cast iron, malleable iron, sintered iron, ductile iron, graphite, bronze, brass, tough aluminium, short chipping packaging: loose in bags of 10 pieces to ..; 10; 5 pieces each from ..; 10.2