Overview Cobalt high speed steel (HSS) Precision ground from solid cobalt alloyed high speed steel for superior drilling performance. The higher cobalt alters the material characteristics by increasing the hardness and high resistance to abrasion. This type of drill is suited to drilling materials that have high toughness and tensile strength, such as cast iron, bronze, weld seams and stainless steel Features 135° split point (drills > 2mm & 3/32) enables accurate positioning and less drilling pressure Thick core for increased rigidity in hard materials Precision engineered parallel shank for accurate hole size Made from HSS Co. The 5% cobalt formula improves abrasive & heat resistance, for increased strength at higher cutting temperatures Colour Tempered surface finish enables identification of cobalt tool material Contents 1/16 – 1/2 x 1/32 rises
