Tools > Drilling > Jobber Drill Bits & Sets > Jobber Drill Bits | Sutton Tools Jobber Drill Bits - Silver Bullet | Description | Sutton Tools Silver Bullet jobber drills are a general purpose drill bit designed for machine and hand held drilling in a wide range of ferrous & non-ferrous materials such as steel, aluminum, brass, wood & plastics | Dimensions | d1 (mm): 2.78 | l1 (mm): 67 | l2 (mm): 38 | Pack Quantity: 1 | Features | 118 standard point for general purpose applications | Precision engineered parallel shank for accurate hole size | Made from M2 High Speed Steel (HSS) offering the best combination of strength, heat & wear resistance | Bright finish for general purpose applications, non-ferrous metals & plastics | Specifications | Designation: N | Material: High Speed Steel | Finish: Bright | Maximum Cut Depth: 5XD | Shank Form: A | Helix Angle: R30 | X: als | Point Tolerance: h8 | Point Angle: 118 | Point Form: Form A | Cutting Edges: ul | Standard: ANSI B94-11/DIN 338 | Applications | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.15 %C)- 125 HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)- 190 HB | Optimal for Steel - Low alloy & cast < 5% of alloying elements- 180 HB | Optimal for Aluminum & Magnesium, wrought alloy - Non Heat Treatable- 60 HB | Optimal for Aluminum & Magnesium, wrought alloy - Heat Treatable- 100 HB