Каталог Winstar сверление - страница 109

Geometry Design of Drills 鑽頭幾何設計

For High Performance Series with Internal Coolant

Reinforced Shank with Double Margins

Overall Length Internal Coolant Cutting Length D Ds Type SX Helix Angle Tip Angle 140° Double Margins

For High Performance Series with External Coolant

Reinforced Shank with Single Margin

Overall Length External Coolant Cutting Length D Ds Type SX Helix Angle Tip Angle 140°

For General Purpose Series with External Coolant

Straight Shank

Overall Length External Coolant Cutting Length D Ds Type NX Helix Angle Tip Angle 130°