Product Description Sizes 1mm to 10mm increasing in 1/2 mm increments.Suitable for drilling cast iron, sheet metal, non-ferrou metak, steel, stainless steel, brass, wood and PVC.Industrial quality drill bit manufacture from high quality High Speed Steel & hardened for superb strength.135° split point tip for spot drilling without pre-centring.Ground cutting edge offers fast drilling & perfect finishing.Ground flute ensures fast chip removal
