Descriptions: <br>These drill bits are made of M35 material, includes 5% cobalt, high hardness, stable performance. Cobalt steel extends cutting edge life and maintains cutting life after resharpening <br>Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron. <br> <br> <br>Features: <br>Made of M35 material, includes 5% cobalt, high hardness, stable performance. <br> <br>135-degree split-point tip starts drilling immediately with less force and eliminates "walking" across the work surface. <br> <br>Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron. <br> <br>With high surface finish, high grinding precision , the blade is sharp and durable in use. <br>It is widely used in the drilling of stainless steel plate, automobile spring steel and die steel <br>Cobalt steel extends cutting edge life and maintains cutting life after resharpening <br> <br> <br> <br>Specifications: <br>Material: HSS CO/M35 <br>Drill bit size(Optional):1.0, 1.5mm, 2mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 5mm <br>Quantity:10 <br>Specification(mm) <br>Working length <br>Total length <br>Weight(g) <br> <br>1 <br>12 <br>30 <br>3 <br> <br>1.5 <br>18 <br>40 <br>6 <br> <br>2 <br>24 <br>49 <br>11 <br> <br>2.5 <br>30 <br>57 <br>19 <br> <br>3 <br>33 <br>61 <br>30 <br> <br>3.2 <br>35 <br>65 <br>35 <br> <br>3.5 <br>40 <br>70 <br>44 <br> <br>4 <br>43 <br>75 <br>57 <br> <br>4.5 <br>43 <br>80 <br>72 <br> <br>5 <br>51 <br>85 <br>99 <br> <br> <br> <br>Package included: <br>10 x M35 Cobalt Drill Bits<br>1、Made of M35 material, includes 5% cobalt, high hardness, stable performance <br>2、135-degree split-point tip starts drilling immediately with less force and eliminates <br>3、Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron <br>4、With high surface finish, high grinding precision , the blade is sharp and durable in use <br>5、It is widely used in the drilling of stainless steel plate, automobile spring steel and die steel