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Series 2020 HSS-Co Straight Shank Heavy Duty Stub Drills
Metric
Heavy duty drill made of cobalt material with excellent heat resistance. For drilling steels up to 1,400N/mm2, stainless steel, heat resistant steels and bronze. Ideally suited for volume production on automatics. TiN coating provides longer tool life or increased cutting speeds. Point angle: 135, helix angle: normal, web thickness: strengthened,
tolerance of diameter: h8, tolerance of shank: f11. Manufactured to BS 328, DIN 1897RN. Point to DIN 1412C.
| Finish/Coating | TiN |
| System of Measurement | Metric |
| Drill Diameter | 4mm |
| Point Type | Split Point |
| Cutting Direction | Right Hand |
| Helix Type | Normal Helix |
| Overall Length | 55mm |
| Standards Met | BS 328 | DIN 1412C | DIN 1897RN |
| Drill Diameter Metric | 4 |
| Point Angle | 135\u00b0 |
| Flute Type | Spiral |
| Number of Flutes | 2 |
| Web Thickness | Form C |
| Number of Pieces | 1 |
| Coolant Delivery | External |
| Shank Diameter Tolerance | F11 |
| Flute Length | 22mm |
| Material | Cobalt High Speed Steel |
| Drill Diameter Tolerance | H8 |
| Series | 2020 |
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