Descriptions

• Silver Bullet stub drills are a rigid twist drill for use in automatic lathes & hand drilling machines
• Developed to drill holes for rivets in flat and curved panels and used in sheet metal fabrication
• Recommended for shallow holes no deeper than 1-1/4 x diameter

Features

• 118° split point minimizes wandering when starting
• 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: 3XD
• Shank Form: A
• Helix Angle: R30
• X: als
• Point Tolerance: h8
• Point Angle: 135°
• Point Form: Standard
• Cutting Edges: ul

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 - 275 HB
• Optimal for Aluminum & Magnesium, wrought alloy - Non Heat Treatable - 60 HB
• Optimal for Aluminum & Magnesium, wrought alloy - Heat Treatable - 100 HB