Topline Drill Bit Set #1 – #60 8% M42 Cobalt 60Pcs. Ground from M-42 cobalt Solid Blank. 135 degree split point. HSS Jobber (standard) Length General Purpose. Sizes #1 to 60. Sturdy Huot USA drill index. High production grade M42 Cobalt Jobbers Length drills are made with 8% cobalt and are ground from a solid blank. This type of drill is used in high tensile material such as stainless and titanium. 5 x 4 x 2 inches; 1.01 Pounds. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. Your feedback very important to us, after you get your package and you are. Satisfied with our service. If you have any problem with your order / any questions please before leave any type of feedback. Thank you for shopping at our store.