DRILL JOBBER 3/16" COBALT

Sutton Tools Heavy Duty Cobalt jobber drills are industrial quality for drilling materials that have high hardness and tensile strength such as cast iron, bronze, hardened steel & stainless steel. These drill bits feature a thick core for increased rigidity in hard materials. 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. Designation: NH Material: HSS Co Finish: Colour Temp Max Cut Depth: 5xD Shank Form: A Helix Angle: Designation: NH Point Tolerance: h8 Point Angle: 135 Point Form: Form C Cutting Edges: ul