LingGan Stainless Steel Special Twist Drill Bit, High Hardness, Fast Chip Removal, Good Wear Resistance, 135° Large Top Angle Design, Double Relief Angle, Fast And Precise Drilling, Saving Time And Effort, Spiral Pattern Large Groove Design, Large Chip Holding Space, Smooth Chip Removal, Effective Prevention Of Accumulated Chip Residues, Good Chip Removal Performance, Fast Drilling Speed, Fully Ground Double Cutting Edges, Accurate Size, Good Finish, Reduced Friction Coefficient Of Drilling, Smooth Hole Wall, High Precision, Yellowing Surface, Rust-Proof And Beautiful, Prevent Oxidation And Rust, Extend Service Life, Round Drill Shank, Firm Clamping And Non-Slip, Wide Application Range. 30° Helix Angle, Fast Cutting Speed And High Efficiency.

• Straight Shank And 135° Point Angle - Straight Shank For Standard Drill Chucks And Collet Chuck To Hold Firmly, Assuring Accurate Centering; Helical Flute For Swarf To Easily Get Out; Ideal For General Purpose Drilling Applications.
• For Metalworking - Particularly Successful In Cutting Through Hard Metals(Hardness Less Than Hrc38°) Such As Stainless Steel And Cast Iron, Although They Can Be Used For Softer Materials Like Copper And Aluminium, Too. Not For Hardened Steel And High Carbon Steel.

Specifications

Common questions